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BOSTON MARATHON 2025

Thomas Carpenter

Bib: 8311•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:40
Rank: #26799
Start → 5K
10:31/mi
32:40 split
10K· 6.21 mi
1:04:18
Rank: #26197 (+602)
5K → 10K
10:11/mi
31:38 split
15K· 9.32 mi
1:38:42
Rank: #26443 (-246)
10K → 15K
11:04/mi
34:24 split
20K· 12.43 mi
2:20:57
Rank: #27205 (-762)
15K → 20K
13:36/mi
42:15 split
Half· 13.11 mi
2:29:22
Rank: #27249 (-44)
20K → Half
12:20/mi
8:25 split
25K· 15.53 mi
3:01:48
Rank: #27328 (-79)
Half → 25K
13:23/mi
32:26 split
30K· 18.64 mi
3:47:30
Rank: #27492 (-164)
25K → 30K
14:43/mi
45:42 split
20M
4:06:04
Rank: #27455 (+37)
30K → 20M
13:40/mi
18:34 split
21M
4:20:26
Rank: #27427 (+28)
20M → 21M
14:22/mi
14:22 split
35K· 21.75 mi
4:30:34
Rank: #27444 (-17)
21M → 35K
13:33/mi
10:08 split
23M
4:48:22
Rank: #27469 (-25)
35K → 23M
14:13/mi
17:48 split
24M
5:02:48
Rank: #27504 (-35)
23M → 24M
14:26/mi
14:26 split
40K· 24.85 mi
5:15:05
Rank: #27503 (+1)
24M → 40K
14:22/mi
12:17 split
25.2M
5:20:23
Rank: #27511 (-8)
40K → 25.2M
15:22/mi
5:18 split
Finish· 26.22 mi
5:34:38
Rank: #27570 (-59)
25.2M → Finish
13:59/mi
14:15 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:29:22
Pace11:24 /mi
2nd Half
Distance13.11 mi
Time3:05:16
Pace14:08 /mi
📊Positive Split: 24.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:08:1132:4010:3132:40
10:31
-
10K
6.21 mi11:39:491:04:1810:2131:38
10:11
-0:20
15K
9.32 mi12:14:131:38:4210:3534:24
11:04
+0:53
20K
12.43 mi12:56:282:20:5711:2142:15
13:36
+2:32
Half
13.11 mi13:04:532:29:2211:248:25
12:20
-1:16
25K
15.53 mi13:37:193:01:4811:4232:26
13:23
+1:03
30K
18.64 mi14:23:013:47:3012:1245:42
14:43
+1:20
20M
20.00 mi14:41:354:06:0412:1818:34
13:40
-1:03
21M
21.00 mi14:55:574:20:2612:2414:22
14:22
+0:42
35K
21.75 mi15:06:054:30:3412:2610:08
13:33
-0:49
23M
23.00 mi15:23:534:48:2212:3217:48
14:13
+0:40
24M
24.00 mi15:38:195:02:4812:3714:26
14:26
+0:13
40K
24.85 mi15:50:365:15:0512:4112:17
14:22
-0:04
25.2M
25.20 mi15:55:545:20:2312:435:18
15:22
+1:00
Finish
26.22 mi16:10:095:34:3812:4614:15
13:59
-1:23

Checkpoints & Pacing

📈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

10:11 /mi

Average Pace

12:46 /mi

Slowest Pace

15:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:07

32% of race

Time at Steady Pace

2:42:05

48% of race

Time at Slower Pace

1:05:26

20% of race

Average Pace: 12:46 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:08:1132:4010:3132:40
10:31
#26799
10K
6.21 mi11:39:491:04:1810:2131:38
10:11
#26197
15K
9.32 mi12:14:131:38:4210:3534:24
11:04
#26443
20K
12.43 mi12:56:282:20:5711:2142:15
13:36
#27205
Half
13.11 mi13:04:532:29:2211:248:25
12:20
#27249
25K
15.53 mi13:37:193:01:4811:4232:26
13:23
#27328
30K
18.64 mi14:23:013:47:3012:1245:42
14:43
#27492
20M
20.00 mi14:41:354:06:0412:1818:34
13:40
#27455
21M
21.00 mi14:55:574:20:2612:2414:22
14:22
#27427
35K
21.75 mi15:06:054:30:3412:2610:08
13:33
#27444
23M
23.00 mi15:23:534:48:2212:3217:48
14:13
#27469
24M
24.00 mi15:38:195:02:4812:3714:26
14:26
#27504
40K
24.85 mi15:50:365:15:0512:4112:17
14:22
#27503
25.2M
25.20 mi15:55:545:20:2312:435:18
15:22
#27511
Finish
26.22 mi16:10:095:34:3812:4614:15
13:59
#27570
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi26799155191551926761(Top 94%)15463(Top 96%)15463(Top 274%)
10K6.21 mi3.10 mi26197+60215254+26515254+26525711(Top 91%)15010(Top 93%)15010(Top 266%)
15K9.32 mi3.11 mi26443-24615356-10215356-10226761(Top 94%)15463(Top 96%)15463(Top 274%)
20K12.43 mi3.11 mi27205-76215650-29415650-29428105(Top 99%)15973(Top 99%)15973(Top 283%)
Half13.11 mi0.68 mi27249-4415664-1415664-1427681(Top 97%)15799(Top 98%)15799(Top 280%)
25K15.53 mi2.42 mi27328-7915688-2415688-2427552(Top 97%)15738(Top 98%)15738(Top 279%)
30K18.64 mi3.11 mi27492-16415727-3915727-3927901(Top 98%)15833(Top 98%)15833(Top 281%)
20M20.00 mi1.36 mi27455+3715704+2315704+2327047(Top 95%)15396(Top 96%)15396(Top 273%)
21M21.00 mi1.00 mi27427+2815695+915695+926584(Top 94%)15158(Top 94%)15158(Top 269%)
35K21.75 mi0.75 mi27444-1715697-215697-227401(Top 96%)15541(Top 96%)15541(Top 275%)
23M23.00 mi1.25 mi27469-2515700-315700-327489(Top 97%)15571(Top 97%)15571(Top 276%)
24M24.00 mi1.00 mi27504-3515707-715707-727848(Top 98%)15735(Top 98%)15735(Top 279%)
40K24.85 mi0.85 mi27503+115708-115708-127443(Top 97%)15533(Top 96%)15533(Top 275%)
25.2M25.20 mi0.35 mi27511-815706+215706+227370(Top 96%)15466(Top 96%)15466(Top 274%)
Finish26.22 mi1.02 mi27570-5915726-2015726-2028039(Top 99%)15865(Top 99%)15865(Top 281%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

26761

Males

15463

M18-39

15463

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

25711

Males

15010

M18-39

15010

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

26761

Males

15463

M18-39

15463

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

28105

Males

15973

M18-39

15973

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

27681

Males

15799

M18-39

15799

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

27552

Males

15738

M18-39

15738

25K→30K

15.5 - 18.6 mi

Top 98%
×9story building
+181ft-148ft

Overall

27901

Males

15833

M18-39

15833

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

27047

Males

15396

M18-39

15396

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

26584

Males

15158

M18-39

15158

21M→35K

21.0 - 21.8 mi

Top 96%
×7story building
+17ft-86ft

Overall

27401

Males

15541

M18-39

15541

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

27489

Males

15571

M18-39

15571

23M→24M

23.0 - 24.0 mi

Top 98%
×6story building
+12ft-82ft

Overall

27848

Males

15735

M18-39

15735

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

27443

Males

15533

M18-39

15533

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

27370

Males

15466

M18-39

15466

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2story building
+22ft-21ft

Overall

28039

Males

15865

M18-39

15865

Passing Analysis

Category:
Athletes Passed
900
Passed By
1671
Net Change
-771
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26799
5K → 10K61816+602#26799#26197
10K → 15K57303-246#26197#26443
15K → 20K9771-762#26443#27205
20K → Half953-44#27205#27249
Half → 25K43122-79#27249#27328
25K → 30K25189-164#27328#27492
30K → 20M5013+37#27492#27455
20M → 21M346+28#27455#27427
21M → 35K623-17#27427#27444
35K → 23M1641-25#27444#27469
23M → 24M944-35#27469#27504
24M → 40K1716+1#27504#27503
40K → 25.2M412-8#27503#27511
25.2M → Finish362-59#27511#27570
TOTALS9001671-771
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing