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BOSTON MARATHON 2025

Larissa Weeks

Bib: 27897•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
32:16
Rank: #26489
Start → 5K
32:16 | 10:23/mi
10K· 6.21 mi
1:05:00
Rank: #26420 (+69)
5K → 10K
32:44 | 10:32/mi
15K· 9.32 mi
1:38:10
Rank: #26345 (+75)
10K → 15K
33:10 | 10:41/mi
20K· 12.43 mi
2:12:18
Rank: #26237 (+108)
15K → 20K
34:08 | 10:59/mi
Half· 13.11 mi
2:19:21
Rank: #26189 (+48)
20K → Half
7:03 | 10:20/mi
25K· 15.53 mi
2:48:15
Rank: #26241 (-52)
Half → 25K
28:54 | 11:55/mi
30K· 18.64 mi
3:28:44
Rank: #26382 (-141)
25K → 30K
40:29 | 13:02/mi
20M
3:47:06
Rank: #26461 (-79)
30K → 20M
18:22 | 13:31/mi
21M
4:00:51
Rank: #26437 (+24)
20M → 21M
13:45 | 13:45/mi
35K· 21.75 mi
4:10:54
Rank: #26477 (-40)
21M → 35K
10:03 | 13:26/mi
23M
4:26:24
Rank: #26443 (+34)
35K → 23M
15:30 | 12:23/mi
24M
4:38:56
Rank: #26455 (-12)
23M → 24M
12:32 | 12:32/mi
40K· 24.85 mi
4:49:47
Rank: #26453 (+2)
24M → 40K
10:51 | 12:41/mi
25.2M
4:54:24
Rank: #26451 (+2)
40K → 25.2M
4:37 | 13:23/mi
Finish· 26.22 mi
5:06:24
Rank: #26470 (-19)
25.2M → Finish
12:00 | 11:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:19:21
Pace10:38 /mi
2nd Half
Distance13.11 mi
Time2:47:03
Pace12:45 /mi
📊Positive Split: 19.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:0132:1610:2332:16
10:23
-
10K
6.21 mi12:22:451:05:0010:2832:44
10:32
+0:09
15K
9.32 mi12:55:551:38:1010:3233:10
10:41
+0:09
20K
12.43 mi13:30:032:12:1810:3934:08
10:59
+0:18
Half
13.11 mi13:37:062:19:2110:387:03
10:20
-0:39
25K
15.53 mi14:06:002:48:1510:5028:54
11:55
+1:35
30K
18.64 mi14:46:293:28:4411:1240:29
13:02
+1:07
20M
20.00 mi15:04:513:47:0611:2118:22
13:31
+0:29
21M
21.00 mi15:18:364:00:5111:2813:45
13:45
+0:14
35K
21.75 mi15:28:394:10:5411:3210:03
13:26
-0:19
23M
23.00 mi15:44:094:26:2411:3515:30
12:23
-1:03
24M
24.00 mi15:56:414:38:5611:3712:32
12:32
+0:09
40K
24.85 mi16:07:324:49:4711:4010:51
12:41
+0:09
25.2M
25.20 mi16:12:094:54:2411:414:37
13:23
+0:42
Finish
26.22 mi16:24:095:06:2411:4212:00
11:47
-1:36

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

10:20 /mi

Average Pace

11:42 /mi

Slowest Pace

13:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:21

49% of race

Time at Steady Pace

1:07:47

22% of race

Time at Slower Pace

1:27:16

28% of race

Average Pace: 11:41 /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 mi11:50:0132:1610:2332:16
10:23
#26489
10K
6.21 mi12:22:451:05:0010:2832:44
10:32
#26420
15K
9.32 mi12:55:551:38:1010:3233:10
10:41
#26345
20K
12.43 mi13:30:032:12:1810:3934:08
10:59
#26237
Half
13.11 mi13:37:062:19:2110:387:03
10:20
#26189
25K
15.53 mi14:06:002:48:1510:5028:54
11:55
#26241
30K
18.64 mi14:46:293:28:4411:1240:29
13:02
#26382
20M
20.00 mi15:04:513:47:0611:2118:22
13:31
#26461
21M
21.00 mi15:18:364:00:5111:2813:45
13:45
#26437
35K
21.75 mi15:28:394:10:5411:3210:03
13:26
#26477
23M
23.00 mi15:44:094:26:2411:3515:30
12:23
#26443
24M
24.00 mi15:56:414:38:5611:3712:32
12:32
#26455
40K
24.85 mi16:07:324:49:4711:4010:51
12:41
#26453
25.2M
25.20 mi16:12:094:54:2411:414:37
13:23
#26451
Finish
26.22 mi16:24:095:06:2411:4212:00
11:47
#26470
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26489110291102926212(Top 92%)10895(Top 89%)10895(Top 199%)
10K6.21 mi3.10 mi26420+6911008+2111008+2126327(Top 93%)10972(Top 90%)10972(Top 201%)
15K9.32 mi3.11 mi26345+7510974+3410974+3426212(Top 92%)10895(Top 89%)10895(Top 199%)
20K12.43 mi3.11 mi26237+10810907+6710907+6725974(Top 91%)10797(Top 88%)10797(Top 197%)
Half13.11 mi0.68 mi26189+4810887+2010887+2025495(Top 90%)10545(Top 86%)10545(Top 193%)
25K15.53 mi2.42 mi26241-5210916-2910916-2926357(Top 93%)11055(Top 90%)11055(Top 202%)
30K18.64 mi3.11 mi26382-14111030-11411030-11426708(Top 94%)11341(Top 93%)11341(Top 207%)
20M20.00 mi1.36 mi26461-7911100-7011100-7026912(Top 95%)11508(Top 94%)11508(Top 210%)
21M21.00 mi1.00 mi26437+2411091+911091+925937(Top 91%)11013(Top 90%)11013(Top 201%)
35K21.75 mi0.75 mi26477-4011123-3211123-3227312(Top 96%)11747(Top 96%)11747(Top 215%)
23M23.00 mi1.25 mi26443+3411112+1111112+1125627(Top 90%)10921(Top 89%)10921(Top 200%)
24M24.00 mi1.00 mi26455-1211124-1211124-1226336(Top 93%)11289(Top 92%)11289(Top 206%)
40K24.85 mi0.85 mi26453+211131-711131-725905(Top 91%)11101(Top 91%)11101(Top 203%)
25.2M25.20 mi0.35 mi26451+211132-111132-125504(Top 90%)10951(Top 90%)10951(Top 200%)
Finish26.22 mi1.02 mi26470-1911148-1611148-1626500(Top 93%)11389(Top 93%)11389(Top 208%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21stories
+97ft-345ft

Overall

26212

Females

10895

F18-39

10895

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

26327

Females

10972

F18-39

10972

10K→15K

6.2 - 9.3 mi

Top 92%
×3stories
+67ft-78ft

Overall

26212

Females

10895

F18-39

10895

15K→20K

9.3 - 12.4 mi

Top 91%
×5stories
+106ft-86ft

Overall

25974

Females

10797

F18-39

10797

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

25495

Females

10545

F18-39

10545

Half→25K

13.1 - 15.5 mi

Top 93%
×4stories
+66ft-88ft

Overall

26357

Females

11055

F18-39

11055

25K→30K

15.5 - 18.6 mi

Top 94%
×9stories
+181ft-148ft

Overall

26708

Females

11341

F18-39

11341

30K→20M

18.6 - 20.0 mi

Top 95%
×5stories
+64ft-50ft

Overall

26912

Females

11508

F18-39

11508

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

25937

Females

11013

F18-39

11013

21M→35K

21.0 - 21.8 mi

Top 96%
×7stories
+17ft-86ft

Overall

27312

Females

11747

F18-39

11747

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

25627

Females

10921

F18-39

10921

23M→24M

23.0 - 24.0 mi

Top 93%
×6stories
+12ft-82ft

Overall

26336

Females

11289

F18-39

11289

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25905

Females

11101

F18-39

11101

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

25504

Females

10951

F18-39

10951

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2stories
+22ft-21ft

Overall

26500

Females

11389

F18-39

11389

Passing Analysis

Category:
Athletes Passed
945
Passed By
926
Net Change
+19
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26489
5K → 10K207138+69#26489#26420
10K → 15K16489+75#26420#26345
15K → 20K17062+108#26345#26237
20K → Half535+48#26237#26189
Half → 25K61113-52#26189#26241
25K → 30K54195-141#26241#26382
30K → 20M27106-79#26382#26461
20M → 21M5632+24#26461#26437
21M → 35K1454-40#26437#26477
35K → 23M5723+34#26477#26443
23M → 24M2133-12#26443#26455
24M → 40K2321+2#26455#26453
40K → 25.2M1513+2#26453#26451
25.2M → Finish2342-19#26451#26470
TOTALS945926+19
📊

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