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BOSTON MARATHON 2026

Thomas Heinlein

Bib: 17226•M

MI

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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 (M55-59)
#0 / 1491
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
24:36
3.11 mi
Rank: #16321
Start → 5K
24:36 | 7:56/mi
10K
48:39
6.21 mi
Rank: #15744 (+577)
5K → 10K
24:03 | 7:45/mi
15K
1:12:41
9.32 mi
Rank: #15412 (+332)
10K → 15K
24:02 | 7:45/mi
20K
1:36:51
12.43 mi
Rank: #15105 (+307)
15K → 20K
24:10 | 7:47/mi
HALF
1:42:10
13.11 mi
Rank: #15128 (-23)
20K → HALF
5:19 | 7:48/mi
25K
2:01:14
15.53 mi
Rank: #14977 (+151)
HALF → 25K
19:04 | 7:52/mi
30K
2:27:04
18.64 mi
Rank: #15096 (-119)
25K → 30K
25:50 | 8:19/mi
20M
2:39:10
20.00 mi
Rank: #15408 (-312)
30K → 20M
12:06 | 8:55/mi
21M
2:49:38
21.00 mi
Rank: #15960 (-552)
20M → 21M
10:28 | 10:28/mi
35K
2:56:58
21.75 mi
Rank: #16299 (-339)
21M → 35K
7:20 | 9:49/mi
23M
3:10:39
23.00 mi
Rank: #17126 (-827)
35K → 23M
13:41 | 10:57/mi
24M
3:20:11
24.00 mi
Rank: #17374 (-248)
23M → 24M
9:32 | 9:32/mi
40K
3:29:22
24.85 mi
Rank: #17798 (-424)
24M → 40K
9:11 | 10:45/mi
25.2M
3:33:13
25.20 mi
Rank: #17912 (-114)
40K → 25.2M
3:51 | 11:10/mi
FINISH
3:42:16
26.22 mi
Rank: #18009 (-97)
25.2M → FINISH
9:03 | 8:53/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:42:10
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time2:00:06
Pace9:10 /mi
📊Positive Split: 17.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:06:1924:367:5624:36
7:56
-
10K
6.21 mi11:30:2248:397:5024:03
7:45
-0:11
15K
9.32 mi11:54:241:12:417:4824:02
7:45
0:00
20K
12.43 mi12:18:341:36:517:4824:10
7:47
+0:02
HALF
13.11 mi12:23:531:42:107:485:19
7:48
+0:01
25K
15.53 mi12:42:572:01:147:4919:04
7:52
+0:04
30K
18.64 mi13:08:472:27:047:5425:50
8:19
+0:27
20M
20.00 mi13:20:532:39:107:5812:06
8:55
+0:36
21M
21.00 mi13:31:212:49:388:0510:28
10:28
+1:33
35K
21.75 mi13:38:412:56:588:097:20
9:49
-0:39
23M
23.00 mi13:52:223:10:398:1813:41
10:57
+1:08
24M
24.00 mi14:01:543:20:118:219:32
9:32
-1:25
40K
24.85 mi14:11:053:29:228:269:11
10:45
+1:13
25.2M
25.20 mi14:14:563:33:138:283:51
11:10
+0:25
FINISH
26.22 mi14:23:593:42:168:309:03
8:53
-2:17

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

7:45 /mi

Average Pace

8:29 /mi

Slowest Pace

11:10 /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

2:01:14

55% of race

Time at Steady Pace

46:59

21% of race

Time at Slower Pace

54:03

24% of race

Average Pace: 8:29 /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 mi11:06:1924:367:5624:36
7:56
#16321
10K
6.21 mi11:30:2248:397:5024:03
7:45
#15744
15K
9.32 mi11:54:241:12:417:4824:02
7:45
#15412
20K
12.43 mi12:18:341:36:517:4824:10
7:47
#15105
HALF
13.11 mi12:23:531:42:107:485:19
7:48
#15128
25K
15.53 mi12:42:572:01:147:4919:04
7:52
#14977
30K
18.64 mi13:08:472:27:047:5425:50
8:19
#15096
20M
20.00 mi13:20:532:39:107:5812:06
8:55
#15408
21M
21.00 mi13:31:212:49:388:0510:28
10:28
#15960
35K
21.75 mi13:38:412:56:588:097:20
9:49
#16299
23M
23.00 mi13:52:223:10:398:1813:41
10:57
#17126
24M
24.00 mi14:01:543:20:118:219:32
9:32
#17374
40K
24.85 mi14:11:053:29:228:269:11
10:45
#17798
25.2M
25.20 mi14:14:563:33:138:283:51
11:10
#17912
FINISH
26.22 mi14:23:593:42:168:309:03
8:53
#18009
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16321107401074014811(Top 51%)10128(Top 62%)10128(Top 679%)
10K6.21 mi3.10 mi15744+57710509+23110509+23115085(Top 52%)10264(Top 63%)10264(Top 688%)
15K9.32 mi3.11 mi15412+33210360+14910360+14914811(Top 51%)10128(Top 62%)10128(Top 679%)
20K12.43 mi3.11 mi15105+30710230+13010230+13014340(Top 49%)9885(Top 60%)9885(Top 663%)
HALF13.11 mi0.68 mi15128-2310245-1510245-1515523(Top 53%)10426(Top 64%)10426(Top 699%)
25K15.53 mi2.42 mi14977+15110183+6210183+6214327(Top 49%)9798(Top 60%)9798(Top 657%)
30K18.64 mi3.11 mi15096-11910187-410187-415723(Top 54%)10294(Top 63%)10294(Top 690%)
20M20.00 mi1.36 mi15408-31210280-9310280-9318483(Top 64%)11389(Top 70%)11389(Top 764%)
21M21.00 mi1.00 mi15960-55210481-20110481-20121849(Top 75%)12941(Top 79%)12941(Top 868%)
35K21.75 mi0.75 mi16299-33910605-12410605-12422607(Top 78%)13254(Top 81%)13254(Top 889%)
23M23.00 mi1.25 mi17126-82710944-33910944-33924337(Top 84%)14025(Top 86%)14025(Top 941%)
24M24.00 mi1.00 mi17374-24811021-7711021-7721439(Top 74%)12590(Top 77%)12590(Top 844%)
40K24.85 mi0.85 mi17798-42411187-16611187-16623731(Top 82%)13653(Top 84%)13653(Top 916%)
25.2M25.20 mi0.35 mi17912-11411223-3611223-3622720(Top 78%)13167(Top 81%)13167(Top 883%)
FINISH26.22 mi1.02 mi18009-9711266-4311266-4319965(Top 69%)11827(Top 72%)11827(Top 793%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21
+97ft-345ft

Overall

14811

Males

10128

M55-59

10128

5K→10K

3.1 - 6.2 mi

Top 52%
×5
+79ft-138ft

Overall

15085

Males

10264

M55-59

10264

10K→15K

6.2 - 9.3 mi

Top 51%
×3
+67ft-78ft

Overall

14811

Males

10128

M55-59

10128

15K→20K

9.3 - 12.4 mi

Top 49%
×5
+106ft-86ft

Overall

14340

Males

9885

M55-59

9885

20K→HALF

12.4 - 13.1 mi

Top 53%
×2
+19ft-37ft

Overall

15523

Males

10426

M55-59

10426

HALF→25K

13.1 - 15.5 mi

Top 49%
×4
+66ft-88ft

Overall

14327

Males

9798

M55-59

9798

25K→30K

15.5 - 18.6 mi

Top 54%
×9
+181ft-148ft

Overall

15723

Males

10294

M55-59

10294

30K→20M

18.6 - 20.0 mi

Top 64%
×5
+64ft-50ft

Overall

18483

Males

11389

M55-59

11389

20M→21M

20.0 - 21.0 mi

Top 75%
×8
+106ft-24ft

Overall

21849

Males

12941

M55-59

12941

21M→35K

21.0 - 21.8 mi

Top 78%
×7
+17ft-86ft

Overall

22607

Males

13254

M55-59

13254

35K→23M

21.8 - 23.0 mi

Top 84%
×5
+23ft-63ft

Overall

24337

Males

14025

M55-59

14025

23M→24M

23.0 - 24.0 mi

Top 74%
×6
+12ft-82ft

Overall

21439

Males

12590

M55-59

12590

24M→40K

24.0 - 24.9 mi

Top 82%
×1
+6ft-20ft

Overall

23731

Males

13653

M55-59

13653

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1
+13ft-16ft

Overall

22720

Males

13167

M55-59

13167

25.2M→FINISH

25.2 - 26.2 mi

Top 69%
×2
+22ft-21ft

Overall

19965

Males

11827

M55-59

11827

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2003*
Passed By
1987
Net Change
-1688
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16321
5K → 10K675*98+577#16321#15744
10K → 15K409*77+332#15744#15412
15K → 20K349*42+307#15412#15105
20K → HALF3053-23#15105#15128
HALF → 25K210*59+151#15128#14977
25K → 30K163200-119#14977#15096
30K → 20M43200-312#15096#15408
20M → 21M19200-552#15408#15960
21M → 35K19200-339#15960#16299
35K → 23M7200-827#16299#17126
23M → 24M26200-248#17126#17374
24M → 40K6200-424#17374#17798
40K → 25.2M10124-114#17798#17912
25.2M → FINISH37134-97#17912#18009
TOTALS2003*1987-1688

* 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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing