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BOSTON MARATHON 2025

Katherine Mumma

Bib: 26250•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
9:39/mi
29:58
↑ 97↓ 3451.5%
10K· 6.21 mi
9:42/mi
1:00:05
↑ 79↓ 1380.4%
15K· 9.32 mi
9:27/mi
1:29:27
↑ 67↓ 78
20K· 12.43 mi
9:52/mi
2:00:05
↑ 106↓ 860.1%
Half· 13.11 mi
9:43/mi
2:06:43
↑ 19↓ 370.5%
25K· 15.53 mi
10:03/mi
2:31:05
↑ 66↓ 880.2%
30K· 18.64 mi
11:09/mi
3:05:42
↑ 181↓ 1480.2%
20M
10:33/mi
3:20:02
↑ 64↓ 500.2%
21M
11:11/mi
3:31:13
↑ 106↓ 241.6%
35K· 21.75 mi
11:15/mi
3:39:38
↑ 17↓ 861.7%
23M
10:37/mi
3:52:55
↑ 23↓ 630.6%
24M
10:25/mi
4:03:20
↓ 821.3%
40K· 24.85 mi
10:41/mi
4:12:28
↓ 200.3%
25.2M
11:50/mi
4:16:33
↑ 13↓ 160.2%
Finish· 26.22 mi
10:25/mi
4:27:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:43
Pace9:40 /mi
2nd Half
Distance13.11 mi
Time2:20:27
Pace10:43 /mi
📊Positive Split: 10.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:3229:589:3929:58
9:39
-
10K
6.21 mi12:15:391:00:059:4030:07
9:42
+0:03
15K
9.32 mi12:45:011:29:279:3629:22
9:27
-0:15
20K
12.43 mi13:15:392:00:059:4030:38
9:52
+0:25
Half
13.11 mi13:22:172:06:439:406:38
9:43
-0:09
25K
15.53 mi13:46:392:31:059:4424:22
10:03
+0:20
30K
18.64 mi14:21:163:05:429:5834:37
11:09
+1:06
20M
20.00 mi14:35:363:20:0210:0014:20
10:33
-0:36
21M
21.00 mi14:46:473:31:1310:0311:11
11:11
+0:38
35K
21.75 mi14:55:123:39:3810:068:25
11:15
+0:04
23M
23.00 mi15:08:293:52:5510:0813:17
10:37
-0:38
24M
24.00 mi15:18:544:03:2010:0810:25
10:25
-0:12
40K
24.85 mi15:28:024:12:2810:099:08
10:41
+0:16
25.2M
25.20 mi15:32:074:16:3310:114:05
11:50
+1:09
Finish
26.22 mi15:42:444:27:1010:1210:37
10:25
-1:25

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

9:27 /mi

Average Pace

10:12 /mi

Slowest Pace

11:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:05

57% of race

Time at Steady Pace

57:47

22% of race

Time at Slower Pace

58:18

22% of race

Average Pace: 10:11 /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 mi11:45:3229:589:3929:58
9:39
#24678
10K
6.21 mi12:15:391:00:059:4030:07
9:42
#24661
15K
9.32 mi12:45:011:29:279:3629:22
9:27
#24309
20K
12.43 mi13:15:392:00:059:4030:38
9:52
#24204
Half
13.11 mi13:22:172:06:439:406:38
9:43
#24211
25K
15.53 mi13:46:392:31:059:4424:22
10:03
#24049
30K
18.64 mi14:21:163:05:429:5834:37
11:09
#24140
20M
20.00 mi14:35:363:20:0210:0014:20
10:33
#24013
21M
21.00 mi14:46:473:31:1310:0311:11
11:11
#23883
35K
21.75 mi14:55:123:39:3810:068:25
11:15
#23918
23M
23.00 mi15:08:293:52:5510:0813:17
10:37
#23818
24M
24.00 mi15:18:544:03:2010:0810:25
10:25
#23770
40K
24.85 mi15:28:024:12:2810:099:08
10:41
#23719
25.2M
25.20 mi15:32:074:16:3310:114:05
11:50
#23712
Finish
26.22 mi15:42:444:27:1010:1210:37
10:25
#23719
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi24678100501005023610(Top 83%)9442(Top 77%)9442(Top 521%)
10K6.21 mi3.10 mi24661+1710041+910041+924601(Top 87%)10020(Top 82%)10020(Top 553%)
15K9.32 mi3.11 mi24309+3529847+1949847+19423610(Top 83%)9442(Top 77%)9442(Top 521%)
20K12.43 mi3.11 mi24204+1059806+419806+4123912(Top 84%)9657(Top 79%)9657(Top 533%)
Half13.11 mi0.68 mi24211-79817-119817-1124194(Top 85%)9814(Top 80%)9814(Top 541%)
25K15.53 mi2.42 mi24049+1629736+819736+8123389(Top 82%)9418(Top 77%)9418(Top 519%)
30K18.64 mi3.11 mi24140-919805-699805-6924284(Top 85%)10016(Top 82%)10016(Top 552%)
20M20.00 mi1.36 mi24013+1279760+459760+4522582(Top 80%)9203(Top 75%)9203(Top 508%)
21M21.00 mi1.00 mi23883+1309702+589702+5821883(Top 77%)8913(Top 73%)8913(Top 492%)
35K21.75 mi0.75 mi23918-359734-329734-3224704(Top 87%)10428(Top 85%)10428(Top 575%)
23M23.00 mi1.25 mi23818+1009701+339701+3322313(Top 79%)9236(Top 76%)9236(Top 509%)
24M24.00 mi1.00 mi23770+489687+149687+1422596(Top 80%)9434(Top 77%)9434(Top 520%)
40K24.85 mi0.85 mi23719+519677+109677+1022415(Top 79%)9421(Top 77%)9421(Top 520%)
25.2M25.20 mi0.35 mi23712+79678-19678-122925(Top 81%)9625(Top 79%)9625(Top 531%)
Finish26.22 mi1.02 mi23719-79691-139691-1324104(Top 85%)10224(Top 84%)10224(Top 564%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

23610

Females

9442

F45-49

9442

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

24601

Females

10020

F45-49

10020

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

23610

Females

9442

F45-49

9442

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

23912

Females

9657

F45-49

9657

20K→Half

12.4 - 13.1 mi

Top 85%
×2story building
+19ft-37ft

Overall

24194

Females

9814

F45-49

9814

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23389

Females

9418

F45-49

9418

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

24284

Females

10016

F45-49

10016

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22582

Females

9203

F45-49

9203

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

21883

Females

8913

F45-49

8913

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

24704

Females

10428

F45-49

10428

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

22313

Females

9236

F45-49

9236

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22596

Females

9434

F45-49

9434

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

22415

Females

9421

F45-49

9421

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

22925

Females

9625

F45-49

9625

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

24104

Females

10224

F45-49

10224

Passing Analysis

Category:
Athletes Passed
1727
Passed By
768
Net Change
+959
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24678
5K → 10K210193+17#24678#24661
10K → 15K37624+352#24661#24309
15K → 20K19085+105#24309#24204
20K → Half2027-7#24204#24211
Half → 25K20240+162#24211#24049
25K → 30K114205-91#24049#24140
30K → 20M14518+127#24140#24013
20M → 21M1355+130#24013#23883
21M → 35K3671-35#23883#23918
35K → 23M11414+100#23918#23818
23M → 24M6416+48#23818#23770
24M → 40K6918+51#23770#23719
40K → 25.2M169+7#23719#23712
25.2M → Finish3643-7#23712#23719
TOTALS1727768+959
📊

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