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BOSTON MARATHON 2025

Nisa Webster

Bib: 20620•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 48%
Gender (Female)
#0 / 12228
Top 34%
Masters (Masters Women)
#0 / 6759
Top 20%
Division (F40-44)
#0 / 1718
Top 40%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:49/mi
24:18
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
48:20
↑ 79↓ 1380.4%
15K· 9.32 mi
7:50/mi
1:12:40
↑ 67↓ 78
20K· 12.43 mi
7:53/mi
1:37:08
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:42:24
↑ 19↓ 370.5%
25K· 15.53 mi
8:01/mi
2:01:50
↑ 66↓ 880.2%
30K· 18.64 mi
8:24/mi
2:27:55
↑ 181↓ 1480.2%
20M
8:31/mi
2:39:29
↑ 64↓ 500.2%
21M
9:06/mi
2:48:35
↑ 106↓ 241.6%
35K· 21.75 mi
8:00/mi
2:54:34
↑ 17↓ 861.7%
23M
8:41/mi
3:05:26
↑ 23↓ 630.6%
24M
8:02/mi
3:13:28
↓ 821.3%
40K· 24.85 mi
8:33/mi
3:20:47
↓ 200.3%
25.2M
9:14/mi
3:23:58
↑ 13↓ 160.2%
Finish· 26.22 mi
7:54/mi
3:32:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:24
Pace7:49 /mi
2nd Half
Distance13.11 mi
Time1:49:37
Pace8:22 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:0124:187:4924:18
7:49
-
10K
6.21 mi11:42:0348:207:4724:02
7:44
-0:05
15K
9.32 mi12:06:231:12:407:4824:20
7:50
+0:06
20K
12.43 mi12:30:511:37:087:4924:28
7:53
+0:03
Half
13.11 mi12:36:071:42:247:495:16
7:43
-0:10
25K
15.53 mi12:55:332:01:507:5119:26
8:01
+0:18
30K
18.64 mi13:21:382:27:557:5626:05
8:24
+0:23
20M
20.00 mi13:33:122:39:297:5811:34
8:31
+0:07
21M
21.00 mi13:42:182:48:358:029:06
9:06
+0:35
35K
21.75 mi13:48:172:54:348:025:59
8:00
-1:06
23M
23.00 mi13:59:093:05:268:0410:52
8:41
+0:41
24M
24.00 mi14:07:113:13:288:048:02
8:02
-0:39
40K
24.85 mi14:14:303:20:478:057:19
8:33
+0:31
25.2M
25.20 mi14:17:413:23:588:063:11
9:14
+0:41
Finish
26.22 mi14:25:443:32:018:068:03
7:54
-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

7:43 /mi

Average Pace

8:06 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:59

80% of race

Time at Steady Pace

38:51

18% of race

Time at Slower Pace

3:11

2% of race

Average Pace: 8:05 /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 mi11:18:0124:187:4924:18
7:49
#15017
10K
6.21 mi11:42:0348:207:4724:02
7:44
#14577
15K
9.32 mi12:06:231:12:407:4824:20
7:50
#14599
20K
12.43 mi12:30:511:37:087:4924:28
7:53
#14392
Half
13.11 mi12:36:071:42:247:495:16
7:43
#14336
25K
15.53 mi12:55:332:01:507:5119:26
8:01
#14244
30K
18.64 mi13:21:382:27:557:5626:05
8:24
#14154
20M
20.00 mi13:33:122:39:297:5811:34
8:31
#14107
21M
21.00 mi13:42:182:48:358:029:06
9:06
#14076
35K
21.75 mi13:48:172:54:348:025:59
8:00
#13987
23M
23.00 mi13:59:093:05:268:0410:52
8:41
#14034
24M
24.00 mi14:07:113:13:288:048:02
8:02
#13898
40K
24.85 mi14:14:303:20:478:057:19
8:33
#13878
25.2M
25.20 mi14:17:413:23:588:063:11
9:14
#13841
Finish
26.22 mi14:25:443:32:018:068:03
7:54
#13759
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi150174538453814662(Top 52%)4393(Top 36%)4393(Top 256%)
10K6.21 mi3.10 mi14577+4404282+2564282+25614221(Top 50%)4092(Top 33%)4092(Top 238%)
15K9.32 mi3.11 mi14599-224313-314313-3114662(Top 52%)4393(Top 36%)4393(Top 256%)
20K12.43 mi3.11 mi14392+2074230+834230+8313900(Top 49%)4037(Top 33%)4037(Top 235%)
Half13.11 mi0.68 mi14336+564202+284202+2813641(Top 48%)3863(Top 32%)3863(Top 225%)
25K15.53 mi2.42 mi14244+924183+194183+1914024(Top 49%)4218(Top 34%)4218(Top 246%)
30K18.64 mi3.11 mi14154+904193-104193-1014114(Top 50%)4438(Top 36%)4438(Top 258%)
20M20.00 mi1.36 mi14107+474199-64199-613887(Top 49%)4453(Top 36%)4453(Top 259%)
21M21.00 mi1.00 mi14076+314208-94208-914121(Top 50%)4694(Top 38%)4694(Top 273%)
35K21.75 mi0.75 mi13987+894182+264182+2612301(Top 43%)3808(Top 31%)3808(Top 222%)
23M23.00 mi1.25 mi14034-474240-584240-5814428(Top 51%)5017(Top 41%)5017(Top 292%)
24M24.00 mi1.00 mi13898+1364201+394201+3911529(Top 41%)3591(Top 29%)3591(Top 209%)
40K24.85 mi0.85 mi13878+204229-284229-2813804(Top 49%)4852(Top 40%)4852(Top 282%)
25.2M25.20 mi0.35 mi13841+374218+114218+1113145(Top 46%)4564(Top 37%)4564(Top 266%)
Finish26.22 mi1.02 mi13759+824189+294189+2912201(Top 43%)4038(Top 33%)4038(Top 235%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14662

Females

4393

F40-44

4393

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

14221

Females

4092

F40-44

4092

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14662

Females

4393

F40-44

4393

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13900

Females

4037

F40-44

4037

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13641

Females

3863

F40-44

3863

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

14024

Females

4218

F40-44

4218

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

14114

Females

4438

F40-44

4438

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

13887

Females

4453

F40-44

4453

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

14121

Females

4694

F40-44

4694

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

12301

Females

3808

F40-44

3808

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

14428

Females

5017

F40-44

5017

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11529

Females

3591

F40-44

3591

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13804

Females

4852

F40-44

4852

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

13145

Females

4564

F40-44

4564

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

12201

Females

4038

F40-44

4038

Passing Analysis

Category:
Athletes Passed
2521
Passed By
1263
Net Change
+1258
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15017
5K → 10K573133+440#15017#14577
10K → 15K192214-22#14577#14599
15K → 20K30598+207#14599#14392
20K → Half659+56#14392#14336
Half → 25K202110+92#14336#14244
25K → 30K295205+90#14244#14154
30K → 20M13386+47#14154#14107
20M → 21M131100+31#14107#14076
21M → 35K11122+89#14076#13987
35K → 23M99146-47#13987#14034
23M → 24M15721+136#14034#13898
24M → 40K9272+20#13898#13878
40K → 25.2M5215+37#13878#13841
25.2M → Finish11432+82#13841#13759
TOTALS25211263+1258
📊

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