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BOSTON MARATHON 2025

Kailyn Lamb

Bib: 26904•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:54
Rank: #25459
Start → 5K
30:54 | 9:57/mi
10K· 6.21 mi
1:02:25
Rank: #25540 (-81)
5K → 10K
31:31 | 10:09/mi
15K· 9.32 mi
1:33:51
Rank: #25462 (+78)
10K → 15K
31:26 | 10:07/mi
20K· 12.43 mi
2:04:58
Rank: #25148 (+314)
15K → 20K
31:07 | 10:01/mi
Half· 13.11 mi
2:11:33
Rank: #25087 (+61)
20K → Half
6:35 | 9:39/mi
25K· 15.53 mi
2:35:29
Rank: #24735 (+352)
Half → 25K
23:56 | 9:52/mi
30K· 18.64 mi
3:08:20
Rank: #24458 (+277)
25K → 30K
32:51 | 10:34/mi
20M
3:22:46
Rank: #24340 (+118)
30K → 20M
14:26 | 10:37/mi
21M
3:33:45
Rank: #24178 (+162)
20M → 21M
10:59 | 10:59/mi
35K· 21.75 mi
3:41:58
Rank: #24183 (-5)
21M → 35K
8:13 | 10:59/mi
23M
3:55:32
Rank: #24099 (+84)
35K → 23M
13:34 | 10:50/mi
24M
4:05:52
Rank: #24026 (+73)
23M → 24M
10:20 | 10:20/mi
40K· 24.85 mi
4:16:03
Rank: #24093 (-67)
24M → 40K
10:11 | 11:55/mi
25.2M
4:20:13
Rank: #24081 (+12)
40K → 25.2M
4:10 | 12:05/mi
Finish· 26.22 mi
4:30:03
Rank: #24017 (+64)
25.2M → Finish
9:50 | 9:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:11:33
Pace10:02 /mi
2nd Half
Distance13.11 mi
Time2:18:30
Pace10:34 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:0930:549:5730:54
9:57
-
10K
6.21 mi12:26:401:02:2510:0331:31
10:09
+0:12
15K
9.32 mi12:58:061:33:5110:0431:26
10:07
-0:02
20K
12.43 mi13:29:132:04:5810:0331:07
10:01
-0:06
Half
13.11 mi13:35:482:11:3310:026:35
9:39
-0:22
25K
15.53 mi13:59:442:35:2910:0123:56
9:52
+0:13
30K
18.64 mi14:32:353:08:2010:0632:51
10:34
+0:42
20M
20.00 mi14:47:013:22:4610:0814:26
10:37
+0:03
21M
21.00 mi14:58:003:33:4510:1110:59
10:59
+0:22
35K
21.75 mi15:06:133:41:5810:128:13
10:59
0:00
23M
23.00 mi15:19:473:55:3210:1413:34
10:50
-0:09
24M
24.00 mi15:30:074:05:5210:1510:20
10:20
-0:30
40K
24.85 mi15:40:184:16:0310:1810:11
11:55
+1:35
25.2M
25.20 mi15:44:284:20:1310:204:10
12:05
+0:10
Finish
26.22 mi15:54:184:30:0310:189:50
9:39
-2:26

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

9:39 /mi

Average Pace

10:18 /mi

Slowest Pace

12:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:11:15

26% of race

Time at Steady Pace

2:31:41

56% of race

Time at Slower Pace

47:07

17% of race

Average Pace: 10:18 /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 mi11:55:0930:549:5730:54
9:57
#25459
10K
6.21 mi12:26:401:02:2510:0331:31
10:09
#25540
15K
9.32 mi12:58:061:33:5110:0431:26
10:07
#25462
20K
12.43 mi13:29:132:04:5810:0331:07
10:01
#25148
Half
13.11 mi13:35:482:11:3310:026:35
9:39
#25087
25K
15.53 mi13:59:442:35:2910:0123:56
9:52
#24735
30K
18.64 mi14:32:353:08:2010:0632:51
10:34
#24458
20M
20.00 mi14:47:013:22:4610:0814:26
10:37
#24340
21M
21.00 mi14:58:003:33:4510:1110:59
10:59
#24178
35K
21.75 mi15:06:133:41:5810:128:13
10:59
#24183
23M
23.00 mi15:19:473:55:3210:1413:34
10:50
#24099
24M
24.00 mi15:30:074:05:5210:1510:20
10:20
#24026
40K
24.85 mi15:40:184:16:0310:1810:11
11:55
#24093
25.2M
25.20 mi15:44:284:20:1310:204:10
12:05
#24081
Finish
26.22 mi15:54:184:30:0310:189:50
9:39
#24017
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25459104551045525247(Top 89%)10367(Top 85%)10367(Top 190%)
10K6.21 mi3.10 mi25540-8110520-6510520-6525613(Top 90%)10585(Top 87%)10585(Top 194%)
15K9.32 mi3.11 mi25462+7810474+4610474+4625247(Top 89%)10367(Top 85%)10367(Top 190%)
20K12.43 mi3.11 mi25148+31410315+15910315+15924257(Top 85%)9855(Top 81%)9855(Top 180%)
Half13.11 mi0.68 mi25087+6110283+3210283+3223993(Top 84%)9704(Top 79%)9704(Top 177%)
25K15.53 mi2.42 mi24735+35210110+17310110+17322953(Top 81%)9168(Top 75%)9168(Top 168%)
30K18.64 mi3.11 mi24458+2779978+1329978+13223107(Top 81%)9381(Top 77%)9381(Top 172%)
20M20.00 mi1.36 mi24340+1189929+499929+4922759(Top 80%)9293(Top 76%)9293(Top 170%)
21M21.00 mi1.00 mi24178+1629860+699860+6921377(Top 75%)8643(Top 71%)8643(Top 158%)
35K21.75 mi0.75 mi24183-59871-119871-1124174(Top 85%)10154(Top 83%)10154(Top 186%)
23M23.00 mi1.25 mi24099+849847+249847+2422851(Top 80%)9527(Top 78%)9527(Top 174%)
24M24.00 mi1.00 mi24026+739824+239824+2322368(Top 79%)9329(Top 76%)9329(Top 171%)
40K24.85 mi0.85 mi24093-679880-569880-5624786(Top 87%)10567(Top 86%)10567(Top 193%)
25.2M25.20 mi0.35 mi24081+129877+39877+323438(Top 83%)9884(Top 81%)9884(Top 181%)
Finish26.22 mi1.02 mi24017+649852+259852+2521753(Top 77%)9046(Top 74%)9046(Top 165%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

25247

Females

10367

F18-39

10367

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

25613

Females

10585

F18-39

10585

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

25247

Females

10367

F18-39

10367

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

24257

Females

9855

F18-39

9855

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

23993

Females

9704

F18-39

9704

Half→25K

13.1 - 15.5 mi

Top 81%
×4stories
+66ft-88ft

Overall

22953

Females

9168

F18-39

9168

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

23107

Females

9381

F18-39

9381

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

22759

Females

9293

F18-39

9293

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

21377

Females

8643

F18-39

8643

21M→35K

21.0 - 21.8 mi

Top 85%
×7stories
+17ft-86ft

Overall

24174

Females

10154

F18-39

10154

35K→23M

21.8 - 23.0 mi

Top 80%
×5stories
+23ft-63ft

Overall

22851

Females

9527

F18-39

9527

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

22368

Females

9329

F18-39

9329

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

24786

Females

10567

F18-39

10567

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23438

Females

9884

F18-39

9884

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2stories
+22ft-21ft

Overall

21753

Females

9046

F18-39

9046

Passing Analysis

Category:
Athletes Passed
2027
Passed By
585
Net Change
+1442
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25459
5K → 10K162243-81#25459#25540
10K → 15K16486+78#25540#25462
15K → 20K33016+314#25462#25148
20K → Half665+61#25148#25087
Half → 25K3564+352#25087#24735
25K → 30K29518+277#24735#24458
30K → 20M13315+118#24458#24340
20M → 21M1697+162#24340#24178
21M → 35K3237-5#24178#24183
35K → 23M11632+84#24183#24099
23M → 24M8310+73#24099#24026
24M → 40K2289-67#24026#24093
40K → 25.2M2412+12#24093#24081
25.2M → Finish7511+64#24081#24017
TOTALS2027585+1442
📊

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