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BOSTON MARATHON 2026

Robert Siolka

Bib: 25452•M

WI

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M65-69)
#0 / 774
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
27:40
3.11 mi
Rank: #22187
Start → 5K
27:40 | 8:55/mi
10K
55:05
6.21 mi
Rank: #22117 (+70)
5K → 10K
27:25 | 8:50/mi
15K
1:22:48
9.32 mi
Rank: #22183 (-66)
10K → 15K
27:43 | 8:56/mi
20K
1:52:10
12.43 mi
Rank: #22606 (-423)
15K → 20K
29:22 | 9:28/mi
HALF
1:58:30
13.11 mi
Rank: #22675 (-69)
20K → HALF
6:20 | 9:18/mi
25K
2:22:27
15.53 mi
Rank: #23002 (-327)
HALF → 25K
23:57 | 9:53/mi
30K
2:55:47
18.64 mi
Rank: #23428 (-426)
25K → 30K
33:20 | 10:44/mi
20M
3:10:58
20.00 mi
Rank: #23572 (-144)
30K → 20M
15:11 | 11:11/mi
21M
3:23:47
21.00 mi
Rank: #23768 (-196)
20M → 21M
12:49 | 12:49/mi
35K
3:32:06
21.75 mi
Rank: #23859 (-91)
21M → 35K
8:19 | 11:07/mi
23M
3:45:50
23.00 mi
Rank: #23892 (-33)
35K → 23M
13:44 | 10:59/mi
24M
3:57:36
24.00 mi
Rank: #24045 (-153)
23M → 24M
11:46 | 11:46/mi
40K
4:07:08
24.85 mi
Rank: #24065 (-20)
24M → 40K
9:32 | 11:10/mi
25.2M
4:11:23
25.20 mi
Rank: #24080 (-15)
40K → 25.2M
4:15 | 12:20/mi
FINISH
4:22:15
26.22 mi
Rank: #24154 (-74)
25.2M → FINISH
10:52 | 10:40/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:58:30
Pace9:03 /mi
2nd Half
Distance13.11 mi
Time2:23:45
Pace10:58 /mi
📊Positive Split: 21.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:34:4227:408:5527:40
8:55
-
10K
6.21 mi12:02:0755:058:5227:25
8:50
-0:05
15K
9.32 mi12:29:501:22:488:5427:43
8:56
+0:06
20K
12.43 mi12:59:121:52:109:0229:22
9:28
+0:32
HALF
13.11 mi13:05:321:58:309:036:20
9:18
-0:10
25K
15.53 mi13:29:292:22:279:1123:57
9:53
+0:35
30K
18.64 mi14:02:492:55:479:2633:20
10:44
+0:51
20M
20.00 mi14:18:003:10:589:3315:11
11:11
+0:27
21M
21.00 mi14:30:493:23:479:4312:49
12:49
+1:38
35K
21.75 mi14:39:083:32:069:468:19
11:07
-1:42
23M
23.00 mi14:52:523:45:509:5013:44
10:59
-0:08
24M
24.00 mi15:04:383:57:369:5511:46
11:46
+0:47
40K
24.85 mi15:14:104:07:089:579:32
11:10
-0:36
25.2M
25.20 mi15:18:254:11:239:594:15
12:20
+1:10
FINISH
26.22 mi15:29:174:22:1510:0110:52
10:40
-1:40

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:50 /mi

Average Pace

10:01 /mi

Slowest Pace

12:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:22:27

54% of race

Time at Steady Pace

1:30:58

35% of race

Time at Slower Pace

28:50

11% of race

Average Pace: 10:00 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:34:4227:408:5527:40
8:55
#22187
10K
6.21 mi12:02:0755:058:5227:25
8:50
#22117
15K
9.32 mi12:29:501:22:488:5427:43
8:56
#22183
20K
12.43 mi12:59:121:52:109:0229:22
9:28
#22606
HALF
13.11 mi13:05:321:58:309:036:20
9:18
#22675
25K
15.53 mi13:29:292:22:279:1123:57
9:53
#23002
30K
18.64 mi14:02:492:55:479:2633:20
10:44
#23428
20M
20.00 mi14:18:003:10:589:3315:11
11:11
#23572
21M
21.00 mi14:30:493:23:479:4312:49
12:49
#23768
35K
21.75 mi14:39:083:32:069:468:19
11:07
#23859
23M
23.00 mi14:52:523:45:509:5013:44
10:59
#23892
24M
24.00 mi15:04:383:57:369:5511:46
11:46
#24045
40K
24.85 mi15:14:104:07:089:579:32
11:10
#24065
25.2M
25.20 mi15:18:254:11:239:594:15
12:20
#24080
FINISH
26.22 mi15:29:174:22:1510:0110:52
10:40
#24154
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi22187133171331722322(Top 77%)13438(Top 82%)13438(Top 1736%)
10K6.21 mi3.10 mi22117+7013299+1813299+1822021(Top 76%)13272(Top 81%)13272(Top 1715%)
15K9.32 mi3.11 mi22183-6613343-4413343-4422322(Top 77%)13438(Top 82%)13438(Top 1736%)
20K12.43 mi3.11 mi22606-42313563-22013563-22023602(Top 81%)14012(Top 86%)14012(Top 1810%)
HALF13.11 mi0.68 mi22675-6913597-3413597-3423763(Top 82%)14113(Top 86%)14113(Top 1823%)
25K15.53 mi2.42 mi23002-32713739-14213739-14223981(Top 83%)14183(Top 87%)14183(Top 1832%)
30K18.64 mi3.11 mi23428-42613900-16113900-16124780(Top 85%)14427(Top 88%)14427(Top 1864%)
20M20.00 mi1.36 mi23572-14413968-6813968-6825227(Top 87%)14565(Top 89%)14565(Top 1882%)
21M21.00 mi1.00 mi23768-19614073-10514073-10526160(Top 90%)14967(Top 92%)14967(Top 1934%)
35K21.75 mi0.75 mi23859-9114102-2914102-2925446(Top 88%)14598(Top 89%)14598(Top 1886%)
23M23.00 mi1.25 mi23892-3314096+614096+624435(Top 84%)14072(Top 86%)14072(Top 1818%)
24M24.00 mi1.00 mi24045-15314147-5114147-5126294(Top 91%)14933(Top 91%)14933(Top 1929%)
40K24.85 mi0.85 mi24065-2014142+514142+524526(Top 85%)14030(Top 86%)14030(Top 1813%)
25.2M25.20 mi0.35 mi24080-1514143-114143-125018(Top 86%)14293(Top 87%)14293(Top 1847%)
FINISH26.22 mi1.02 mi24154-7414163-2014163-2025417(Top 88%)14474(Top 89%)14474(Top 1870%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21
+97ft-345ft

Overall

22322

Males

13438

M65-69

13438

5K→10K

3.1 - 6.2 mi

Top 76%
×5
+79ft-138ft

Overall

22021

Males

13272

M65-69

13272

10K→15K

6.2 - 9.3 mi

Top 77%
×3
+67ft-78ft

Overall

22322

Males

13438

M65-69

13438

15K→20K

9.3 - 12.4 mi

Top 81%
×5
+106ft-86ft

Overall

23602

Males

14012

M65-69

14012

20K→HALF

12.4 - 13.1 mi

Top 82%
×2
+19ft-37ft

Overall

23763

Males

14113

M65-69

14113

HALF→25K

13.1 - 15.5 mi

Top 83%
×4
+66ft-88ft

Overall

23981

Males

14183

M65-69

14183

25K→30K

15.5 - 18.6 mi

Top 85%
×9
+181ft-148ft

Overall

24780

Males

14427

M65-69

14427

30K→20M

18.6 - 20.0 mi

Top 87%
×5
+64ft-50ft

Overall

25227

Males

14565

M65-69

14565

20M→21M

20.0 - 21.0 mi

Top 90%
×8
+106ft-24ft

Overall

26160

Males

14967

M65-69

14967

21M→35K

21.0 - 21.8 mi

Top 88%
×7
+17ft-86ft

Overall

25446

Males

14598

M65-69

14598

35K→23M

21.8 - 23.0 mi

Top 84%
×5
+23ft-63ft

Overall

24435

Males

14072

M65-69

14072

23M→24M

23.0 - 24.0 mi

Top 91%
×6
+12ft-82ft

Overall

26294

Males

14933

M65-69

14933

24M→40K

24.0 - 24.9 mi

Top 85%
×1
+6ft-20ft

Overall

24526

Males

14030

M65-69

14030

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1
+13ft-16ft

Overall

25018

Males

14293

M65-69

14293

25.2M→FINISH

25.2 - 26.2 mi

Top 88%
×2
+22ft-21ft

Overall

25417

Males

14474

M65-69

14474

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
815*
Passed By
2016
Net Change
-1967
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22187
5K → 10K270*200+70#22187#22117
10K → 15K152200-66#22117#22183
15K → 20K64200-423#22183#22606
20K → HALF1281-69#22606#22675
HALF → 25K56200-327#22675#23002
25K → 30K46200-426#23002#23428
30K → 20M39183-144#23428#23572
20M → 21M10200-196#23572#23768
21M → 35K17108-91#23768#23859
35K → 23M6396-33#23859#23892
23M → 24M15168-153#23892#24045
24M → 40K4060-20#24045#24065
40K → 25.2M1126-15#24065#24080
25.2M → FINISH2094-74#24080#24154
TOTALS815*2016-1967

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing