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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Spencer Siddons

Bib: 2155 •M •Age: N/A

CA

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Age Group (M18-39)
#0 / 5723
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
27:12
3.11 mi
Rank: #21460
Start → 5K
27:12 | 8:46/mi
10K
53:53
6.21 mi
Rank: #21161 (+299)
5K → 10K
26:41 | 8:36/mi
15K
1:20:16
9.32 mi
Rank: #20796 (+365)
10K → 15K
26:23 | 8:30/mi
20K
1:46:30
12.43 mi
Rank: #20297 (+499)
15K → 20K
26:14 | 8:27/mi
HALF
1:52:14
13.11 mi
Rank: #20263 (+34)
20K → HALF
5:44 | 8:25/mi
25K
2:13:07
15.53 mi
Rank: #20104 (+159)
HALF → 25K
20:53 | 8:37/mi
30K
2:40:07
18.64 mi
Rank: #19721 (+383)
25K → 30K
27:00 | 8:42/mi
20M
2:51:52
20.00 mi
Rank: #19530 (+191)
30K → 20M
11:45 | 8:40/mi
21M
3:01:08
21.00 mi
Rank: #19392 (+138)
20M → 21M
9:16 | 9:16/mi
35K
3:07:27
21.75 mi
Rank: #19302 (+90)
21M → 35K
6:19 | 8:27/mi
23M
3:21:14
23.00 mi
Rank: #19872 (-570)
35K → 23M
13:47 | 11:01/mi
24M
3:29:48
24.00 mi
Rank: #19758 (+114)
23M → 24M
8:34 | 8:34/mi
40K
3:37:13
24.85 mi
Rank: #19649 (+109)
24M → 40K
7:25 | 8:41/mi
25.2M
3:40:25
25.20 mi
Rank: #19584 (+65)
40K → 25.2M
3:12 | 9:17/mi
FINISH
3:48:26
26.22 mi
Rank: #19408 (+176)
25.2M → FINISH
8:01 | 7:53/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:52:14
Pace8:34 /mi
2nd Half
Distance13.11 mi
Time1:56:12
Pace8:52 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:31:4027:128:4627:12
8:46
-
10K
6.21 mi11:58:2153:538:4126:41
8:36
-0:10
15K
9.32 mi12:24:441:20:168:3726:23
8:30
-0:06
20K
12.43 mi12:50:581:46:308:3526:14
8:27
-0:03
HALF
13.11 mi12:56:421:52:148:345:44
8:25
-0:02
25K
15.53 mi13:17:352:13:078:3520:53
8:37
+0:12
30K
18.64 mi13:44:352:40:078:3627:00
8:42
+0:05
20M
20.00 mi13:56:202:51:528:3611:45
8:40
-0:02
21M
21.00 mi14:05:363:01:088:389:16
9:16
+0:36
35K
21.75 mi14:11:553:07:278:386:19
8:27
-0:49
23M
23.00 mi14:25:423:21:148:4513:47
11:01
+2:34
24M
24.00 mi14:34:163:29:488:458:34
8:34
-2:27
40K
24.85 mi14:41:413:37:138:457:25
8:41
+0:07
25.2M
25.20 mi14:44:533:40:258:453:12
9:17
+0:36
FINISH
26.22 mi14:52:543:48:268:448:01
7:53
-1:24

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

7:53 /mi

Average Pace

8:43 /mi

Slowest Pace

11:01 /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

8:01

4% of race

Time at Steady Pace

3:14:10

85% of race

Time at Slower Pace

26:15

11% of race

Average Pace: 8:43 /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 mi11:31:4027:128:4627:12
8:46
#21460
10K
6.21 mi11:58:2153:538:4126:41
8:36
#21161
15K
9.32 mi12:24:441:20:168:3726:23
8:30
#20796
20K
12.43 mi12:50:581:46:308:3526:14
8:27
#20297
HALF
13.11 mi12:56:421:52:148:345:44
8:25
#20263
25K
15.53 mi13:17:352:13:078:3520:53
8:37
#20104
30K
18.64 mi13:44:352:40:078:3627:00
8:42
#19721
20M
20.00 mi13:56:202:51:528:3611:45
8:40
#19530
21M
21.00 mi14:05:363:01:088:389:16
9:16
#19392
35K
21.75 mi14:11:553:07:278:386:19
8:27
#19302
23M
23.00 mi14:25:423:21:148:4513:47
11:01
#19872
24M
24.00 mi14:34:163:29:488:458:34
8:34
#19758
40K
24.85 mi14:41:413:37:138:457:25
8:41
#19649
25.2M
25.20 mi14:44:533:40:258:453:12
9:17
#19584
FINISH
26.22 mi14:52:543:48:268:448:01
7:53
#19408
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21460129421294220092(Top 69%)12360(Top 76%)12360(Top 216%)
10K6.21 mi3.10 mi21161+29912840+10212840+10220823(Top 72%)12691(Top 78%)12691(Top 222%)
15K9.32 mi3.11 mi20796+36512671+16912671+16920092(Top 69%)12360(Top 76%)12360(Top 216%)
20K12.43 mi3.11 mi20297+49912429+24212429+24218969(Top 65%)11845(Top 72%)11845(Top 207%)
HALF13.11 mi0.68 mi20263+3412409+2012409+2019673(Top 68%)12176(Top 75%)12176(Top 213%)
25K15.53 mi2.42 mi20104+15912330+7912330+7919235(Top 66%)11896(Top 73%)11896(Top 208%)
30K18.64 mi3.11 mi19721+38312136+19412136+19417966(Top 62%)11250(Top 69%)11250(Top 197%)
20M20.00 mi1.36 mi19530+19112032+10412032+10417094(Top 59%)10791(Top 66%)10791(Top 189%)
21M21.00 mi1.00 mi19392+13811949+8311949+8317478(Top 60%)10911(Top 67%)10911(Top 191%)
35K21.75 mi0.75 mi19302+9011909+4011909+4017270(Top 60%)10726(Top 66%)10726(Top 187%)
23M23.00 mi1.25 mi19872-57012146-23712146-23724518(Top 84%)14109(Top 86%)14109(Top 247%)
24M24.00 mi1.00 mi19758+11412067+7912067+7917255(Top 59%)10593(Top 65%)10593(Top 185%)
40K24.85 mi0.85 mi19649+10912008+5912008+5916710(Top 58%)10295(Top 63%)10295(Top 180%)
25.2M25.20 mi0.35 mi19584+6511974+3411974+3416186(Top 56%)10079(Top 62%)10079(Top 176%)
FINISH26.22 mi1.02 mi19408+17611878+9611878+9614253(Top 49%)9171(Top 56%)9171(Top 160%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21
+97ft-345ft

Overall

20092

Males

12360

M18-39

12360

5K→10K

3.1 - 6.2 mi

Top 72%
×5
+79ft-138ft

Overall

20823

Males

12691

M18-39

12691

10K→15K

6.2 - 9.3 mi

Top 69%
×3
+67ft-78ft

Overall

20092

Males

12360

M18-39

12360

15K→20K

9.3 - 12.4 mi

Top 65%
×5
+106ft-86ft

Overall

18969

Males

11845

M18-39

11845

20K→HALF

12.4 - 13.1 mi

Top 68%
×2
+19ft-37ft

Overall

19673

Males

12176

M18-39

12176

HALF→25K

13.1 - 15.5 mi

Top 66%
×4
+66ft-88ft

Overall

19235

Males

11896

M18-39

11896

25K→30K

15.5 - 18.6 mi

Top 62%
×9
+181ft-148ft

Overall

17966

Males

11250

M18-39

11250

30K→20M

18.6 - 20.0 mi

Top 59%
×5
+64ft-50ft

Overall

17094

Males

10791

M18-39

10791

20M→21M

20.0 - 21.0 mi

Top 60%
×8
+106ft-24ft

Overall

17478

Males

10911

M18-39

10911

21M→35K

21.0 - 21.8 mi

Top 60%
×7
+17ft-86ft

Overall

17270

Males

10726

M18-39

10726

35K→23M

21.8 - 23.0 mi

Top 84%
×5
+23ft-63ft

Overall

24518

Males

14109

M18-39

14109

23M→24M

23.0 - 24.0 mi

Top 59%
×6
+12ft-82ft

Overall

17255

Males

10593

M18-39

10593

24M→40K

24.0 - 24.9 mi

Top 58%
×1
+6ft-20ft

Overall

16710

Males

10295

M18-39

10295

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1
+13ft-16ft

Overall

16186

Males

10079

M18-39

10079

25.2M→FINISH

25.2 - 26.2 mi

Top 49%
×2
+22ft-21ft

Overall

14253

Males

9171

M18-39

9171

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3055*
Passed By
622
Net Change
+2052
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21460
5K → 10K479*180+299#21460#21161
10K → 15K428*63+365#21161#20796
15K → 20K508*9+499#20796#20297
20K → HALF5319+34#20297#20263
HALF → 25K208*49+159#20263#20104
25K → 30K401*18+383#20104#19721
30K → 20M1976+191#19721#19530
20M → 21M16931+138#19530#19392
21M → 35K10616+90#19392#19302
35K → 23M11200-570#19302#19872
23M → 24M12814+114#19872#19758
24M → 40K1189+109#19758#19649
40K → 25.2M705+65#19649#19584
25.2M → FINISH1793+176#19584#19408
TOTALS3055*622+2052

* 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

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OTQ

Olympic Trials Qualifying analysis available

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