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BOSTON MARATHON 2025

Kaleb Chaisson

Bib: 32463•M

LA

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
27:32
Rank: #21805
Start → 5K
27:32 | 8:52/mi
10K· 6.21 mi
54:21
Rank: #21139 (+666)
5K → 10K
26:49 | 8:38/mi
15K· 9.32 mi
1:20:26
Rank: #20359 (+780)
10K → 15K
26:05 | 8:24/mi
20K· 12.43 mi
1:46:48
Rank: #19838 (+521)
15K → 20K
26:22 | 8:29/mi
Half· 13.11 mi
1:52:26
Rank: #19735 (+103)
20K → Half
5:38 | 8:15/mi
25K· 15.53 mi
2:12:53
Rank: #19220 (+515)
Half → 25K
20:27 | 8:26/mi
30K· 18.64 mi
2:39:40
Rank: #18534 (+686)
25K → 30K
26:47 | 8:37/mi
20M
2:51:19
Rank: #18184 (+350)
30K → 20M
11:39 | 8:34/mi
21M
3:00:12
Rank: #17902 (+282)
20M → 21M
8:53 | 8:53/mi
35K· 21.75 mi
3:06:39
Rank: #17812 (+90)
21M → 35K
6:27 | 8:37/mi
23M
3:17:51
Rank: #17683 (+129)
35K → 23M
11:12 | 8:57/mi
24M
3:26:39
Rank: #17606 (+77)
23M → 24M
8:48 | 8:48/mi
40K· 24.85 mi
3:34:20
Rank: #17536 (+70)
24M → 40K
7:41 | 8:59/mi
25.2M
3:37:52
Rank: #17545 (-9)
40K → 25.2M
3:32 | 10:15/mi
Finish· 26.22 mi
3:46:57
Rank: #17584 (-39)
25.2M → Finish
9:05 | 8:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:26
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time1:54:31
Pace8:44 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:0327:328:5227:32
8:52
-
10K
6.21 mi12:19:5254:218:4526:49
8:38
-0:14
15K
9.32 mi12:45:571:20:268:3826:05
8:24
-0:14
20K
12.43 mi13:12:191:46:488:3626:22
8:29
+0:05
Half
13.11 mi13:17:571:52:268:355:38
8:15
-0:14
25K
15.53 mi13:38:242:12:538:3320:27
8:26
+0:11
30K
18.64 mi14:05:112:39:408:3426:47
8:37
+0:11
20M
20.00 mi14:16:502:51:198:3411:39
8:34
-0:03
21M
21.00 mi14:25:433:00:128:358:53
8:53
+0:19
35K
21.75 mi14:32:103:06:398:356:27
8:37
-0:16
23M
23.00 mi14:43:223:17:518:3611:12
8:57
+0:20
24M
24.00 mi14:52:103:26:398:378:48
8:48
-0:09
40K
24.85 mi14:59:513:34:208:377:41
8:59
+0:11
25.2M
25.20 mi15:03:233:37:528:393:32
10:15
+1:16
Finish
26.22 mi15:12:283:46:578:409:05
8:55
-1:20

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

8:15 /mi

Average Pace

8:40 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

31:43

14% of race

Time at Steady Pace

2:07:19

56% of race

Time at Slower Pace

1:07:55

30% of race

Average Pace: 8:39 /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 mi11:53:0327:328:5227:32
8:52
#21805
10K
6.21 mi12:19:5254:218:4526:49
8:38
#21139
15K
9.32 mi12:45:571:20:268:3826:05
8:24
#20359
20K
12.43 mi13:12:191:46:488:3626:22
8:29
#19838
Half
13.11 mi13:17:571:52:268:355:38
8:15
#19735
25K
15.53 mi13:38:242:12:538:3320:27
8:26
#19220
30K
18.64 mi14:05:112:39:408:3426:47
8:37
#18534
20M
20.00 mi14:16:502:51:198:3411:39
8:34
#18184
21M
21.00 mi14:25:433:00:128:358:53
8:53
#17902
35K
21.75 mi14:32:103:06:398:356:27
8:37
#17812
23M
23.00 mi14:43:223:17:518:3611:12
8:57
#17683
24M
24.00 mi14:52:103:26:398:378:48
8:48
#17606
40K
24.85 mi14:59:513:34:208:377:41
8:59
#17536
25.2M
25.20 mi15:03:233:37:528:393:32
10:15
#17545
Finish
26.22 mi15:12:283:46:578:409:05
8:55
#17584
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21805132261322618664(Top 66%)11909(Top 74%)11909(Top 211%)
10K6.21 mi3.10 mi21139+66612954+27212954+27220502(Top 72%)12697(Top 79%)12697(Top 225%)
15K9.32 mi3.11 mi20359+78012626+32812626+32818664(Top 66%)11909(Top 74%)11909(Top 211%)
20K12.43 mi3.11 mi19838+52112397+22912397+22918137(Top 64%)11669(Top 72%)11669(Top 207%)
Half13.11 mi0.68 mi19735+10312352+4512352+4517610(Top 62%)11452(Top 71%)11452(Top 203%)
25K15.53 mi2.42 mi19220+51512128+22412128+22416770(Top 59%)10998(Top 68%)10998(Top 195%)
30K18.64 mi3.11 mi18534+68611805+32311805+32315504(Top 55%)10287(Top 64%)10287(Top 182%)
20M20.00 mi1.36 mi18184+35011608+19711608+19714252(Top 50%)9585(Top 60%)9585(Top 170%)
21M21.00 mi1.00 mi17902+28211474+13411474+13412827(Top 45%)8768(Top 54%)8768(Top 155%)
35K21.75 mi0.75 mi17812+9011421+5311421+5316171(Top 57%)10254(Top 64%)10254(Top 182%)
23M23.00 mi1.25 mi17683+12911313+10811313+10815939(Top 56%)10051(Top 62%)10051(Top 178%)
24M24.00 mi1.00 mi17606+7711247+6611247+6616307(Top 57%)10165(Top 63%)10165(Top 180%)
40K24.85 mi0.85 mi17536+7011187+6011187+6016209(Top 57%)10013(Top 62%)10013(Top 177%)
25.2M25.20 mi0.35 mi17545-911181+611181+618031(Top 63%)10831(Top 67%)10831(Top 192%)
Finish26.22 mi1.02 mi17584-3911185-411185-418575(Top 65%)11155(Top 69%)11155(Top 198%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

18664

Males

11909

M18-39

11909

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

20502

Males

12697

M18-39

12697

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

18664

Males

11909

M18-39

11909

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

18137

Males

11669

M18-39

11669

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

17610

Males

11452

M18-39

11452

Half→25K

13.1 - 15.5 mi

Top 59%
×4stories
+66ft-88ft

Overall

16770

Males

10998

M18-39

10998

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

15504

Males

10287

M18-39

10287

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

14252

Males

9585

M18-39

9585

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12827

Males

8768

M18-39

8768

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

16171

Males

10254

M18-39

10254

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

15939

Males

10051

M18-39

10051

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

16307

Males

10165

M18-39

10165

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16209

Males

10013

M18-39

10013

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

18031

Males

10831

M18-39

10831

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

18575

Males

11155

M18-39

11155

Passing Analysis

Category:
Athletes Passed
4596
Passed By
375
Net Change
+4221
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21805
5K → 10K73367+666#21805#21139
10K → 15K79111+780#21139#20359
15K → 20K53615+521#20359#19838
20K → Half1096+103#19838#19735
Half → 25K5216+515#19735#19220
25K → 30K69711+686#19220#18534
30K → 20M3522+350#18534#18184
20M → 21M2897+282#18184#17902
21M → 35K11222+90#17902#17812
35K → 23M17344+129#17812#17683
23M → 24M11740+77#17683#17606
24M → 40K9828+70#17606#17536
40K → 25.2M2534-9#17536#17545
25.2M → Finish4382-39#17545#17584
TOTALS4596375+4221
📊

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