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BOSTON MARATHON 2025

Chris Langley

Bib: 31376•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
29:28
Rank: #24194
Start → 5K
29:28 | 9:29/mi
10K· 6.21 mi
1:01:04
Rank: #25035 (-841)
5K → 10K
31:36 | 10:10/mi
15K· 9.32 mi
1:35:15
Rank: #25766 (-731)
10K → 15K
34:11 | 11:00/mi
20K· 12.43 mi
2:10:44
Rank: #26009 (-243)
15K → 20K
35:29 | 11:25/mi
Half· 13.11 mi
2:18:27
Rank: #26075 (-66)
20K → Half
7:43 | 11:19/mi
25K· 15.53 mi
2:50:04
Rank: #26421 (-346)
Half → 25K
31:37 | 13:02/mi
30K· 18.64 mi
3:33:45
Rank: #26735 (-314)
25K → 30K
43:41 | 14:04/mi
20M
3:53:08
Rank: #26849 (-114)
30K → 20M
19:23 | 14:16/mi
21M
4:08:28
Rank: #26905 (-56)
20M → 21M
15:20 | 15:20/mi
35K· 21.75 mi
4:18:17
Rank: #26925 (-20)
21M → 35K
9:49 | 13:07/mi
23M
4:35:56
Rank: #26978 (-53)
35K → 23M
17:39 | 14:06/mi
24M
4:45:34
Rank: #26807 (+171)
23M → 24M
9:38 | 9:38/mi
40K· 24.85 mi
5:02:04
Rank: #27030 (-223)
24M → 40K
16:30 | 19:18/mi
25.2M
5:07:30
Rank: #27048 (-18)
40K → 25.2M
5:26 | 15:45/mi
Finish· 26.22 mi
5:20:38
Rank: #27089 (-41)
25.2M → Finish
13:08 | 12:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:18:27
Pace10:34 /mi
2nd Half
Distance13.11 mi
Time3:02:11
Pace13:54 /mi
📊Positive Split: 31.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1029:289:2929:28
9:29
-
10K
6.21 mi12:24:461:01:049:5031:36
10:10
+0:41
15K
9.32 mi12:58:571:35:1510:1334:11
11:00
+0:50
20K
12.43 mi13:34:262:10:4410:3135:29
11:25
+0:25
Half
13.11 mi13:42:092:18:2710:347:43
11:19
-0:06
25K
15.53 mi14:13:462:50:0410:5731:37
13:02
+1:43
30K
18.64 mi14:57:273:33:4511:2843:41
14:04
+1:02
20M
20.00 mi15:16:503:53:0811:3919:23
14:16
+0:12
21M
21.00 mi15:32:104:08:2811:5015:20
15:20
+1:04
35K
21.75 mi15:41:594:18:1711:539:49
13:07
-2:13
23M
23.00 mi15:59:384:35:5612:0017:39
14:06
+0:59
24M
24.00 mi16:09:164:45:3411:549:38
9:38
-4:28
40K
24.85 mi16:25:465:02:0412:0916:30
19:18
+9:40
25.2M
25.20 mi16:31:125:07:3012:125:26
15:45
-3:33
Finish
26.22 mi16:44:205:20:3812:1413:08
12:53
-2:52

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

9:29 /mi

Average Pace

12:14 /mi

Slowest Pace

19:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28:05

46% of race

Time at Steady Pace

2:15:17

42% of race

Time at Slower Pace

37:16

12% of race

Average Pace: 12:14 /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 mi11:53:1029:289:2929:28
9:29
#24194
10K
6.21 mi12:24:461:01:049:5031:36
10:10
#25035
15K
9.32 mi12:58:571:35:1510:1334:11
11:00
#25766
20K
12.43 mi13:34:262:10:4410:3135:29
11:25
#26009
Half
13.11 mi13:42:092:18:2710:347:43
11:19
#26075
25K
15.53 mi14:13:462:50:0410:5731:37
13:02
#26421
30K
18.64 mi14:57:273:33:4511:2843:41
14:04
#26735
20M
20.00 mi15:16:503:53:0811:3919:23
14:16
#26849
21M
21.00 mi15:32:104:08:2811:5015:20
15:20
#26905
35K
21.75 mi15:41:594:18:1711:539:49
13:07
#26925
23M
23.00 mi15:59:384:35:5612:0017:39
14:06
#26978
24M
24.00 mi16:09:164:45:3411:549:38
9:38
#26807
40K
24.85 mi16:25:465:02:0412:0916:30
19:18
#27030
25.2M
25.20 mi16:31:125:07:3012:125:26
15:45
#27048
Finish
26.22 mi16:44:205:20:3812:1413:08
12:53
#27089
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24194143411434126674(Top 94%)15434(Top 96%)15434(Top 274%)
10K6.21 mi3.10 mi25035-84114722-38114722-38125689(Top 90%)14999(Top 93%)14999(Top 266%)
15K9.32 mi3.11 mi25766-73115056-33415056-33426674(Top 94%)15434(Top 96%)15434(Top 274%)
20K12.43 mi3.11 mi26009-24315151-9515151-9526541(Top 93%)15355(Top 95%)15355(Top 272%)
Half13.11 mi0.68 mi26075-6615181-3015181-3026886(Top 95%)15473(Top 96%)15473(Top 274%)
25K15.53 mi2.42 mi26421-34615325-14415325-14427325(Top 96%)15651(Top 97%)15651(Top 277%)
30K18.64 mi3.11 mi26735-31415417-9215417-9227546(Top 97%)15673(Top 97%)15673(Top 278%)
20M20.00 mi1.36 mi26849-11415464-4715464-4727477(Top 97%)15602(Top 97%)15602(Top 277%)
21M21.00 mi1.00 mi26905-5615480-1615480-1627403(Top 96%)15561(Top 97%)15561(Top 276%)
35K21.75 mi0.75 mi26925-2015491-1115491-1127075(Top 95%)15377(Top 95%)15377(Top 273%)
23M23.00 mi1.25 mi26978-5315500-915500-927404(Top 96%)15529(Top 96%)15529(Top 275%)
24M24.00 mi1.00 mi26807+17115413+8715413+8720129(Top 71%)11936(Top 74%)11936(Top 212%)
40K24.85 mi0.85 mi27030-22315505-9215505-9228373(Top 100%)16083(Top 100%)16083(Top 285%)
25.2M25.20 mi0.35 mi27048-18155051550527591(Top 97%)15592(Top 97%)15592(Top 276%)
Finish26.22 mi1.02 mi27089-4115519-1415519-1427555(Top 97%)15593(Top 97%)15593(Top 276%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21stories
+97ft-345ft

Overall

26674

Males

15434

M18-39

15434

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

25689

Males

14999

M18-39

14999

10K→15K

6.2 - 9.3 mi

Top 94%
×3stories
+67ft-78ft

Overall

26674

Males

15434

M18-39

15434

15K→20K

9.3 - 12.4 mi

Top 93%
×5stories
+106ft-86ft

Overall

26541

Males

15355

M18-39

15355

20K→Half

12.4 - 13.1 mi

Top 95%
×2stories
+19ft-37ft

Overall

26886

Males

15473

M18-39

15473

Half→25K

13.1 - 15.5 mi

Top 96%
×4stories
+66ft-88ft

Overall

27325

Males

15651

M18-39

15651

25K→30K

15.5 - 18.6 mi

Top 97%
×9stories
+181ft-148ft

Overall

27546

Males

15673

M18-39

15673

30K→20M

18.6 - 20.0 mi

Top 97%
×5stories
+64ft-50ft

Overall

27477

Males

15602

M18-39

15602

20M→21M

20.0 - 21.0 mi

Top 96%
×8stories
+106ft-24ft

Overall

27403

Males

15561

M18-39

15561

21M→35K

21.0 - 21.8 mi

Top 95%
×7stories
+17ft-86ft

Overall

27075

Males

15377

M18-39

15377

35K→23M

21.8 - 23.0 mi

Top 96%
×5stories
+23ft-63ft

Overall

27404

Males

15529

M18-39

15529

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

20129

Males

11936

M18-39

11936

24M→40K

24.0 - 24.9 mi

Top 100%
×1story
+6ft-20ft

Overall

28373

Males

16083

M18-39

16083

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

27591

Males

15592

M18-39

15592

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2stories
+22ft-21ft

Overall

27555

Males

15593

M18-39

15593

Passing Analysis

Category:
Athletes Passed
385
Passed By
3280
Net Change
-2895
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24194
5K → 10K32873-841#24194#25035
10K → 15K15746-731#25035#25766
15K → 20K59302-243#25766#26009
20K → Half1177-66#26009#26075
Half → 25K14360-346#26075#26421
25K → 30K22336-314#26421#26735
30K → 20M8122-114#26735#26849
20M → 21M1268-56#26849#26905
21M → 35K1535-20#26905#26925
35K → 23M1467-53#26925#26978
23M → 24M1721+171#26978#26807
24M → 40K0223-223#26807#27030
40K → 25.2M422-18#27030#27048
25.2M → Finish748-41#27048#27089
TOTALS3853280-2895
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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