Boston Marathon logo
BOSTON MARATHON 2025

Jennifer Kanyugi

MA

Bib: 31921 F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
10:19/mi
32:02
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
11:09/mi
1:06:40
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
12:04/mi
1:44:10
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
13:52/mi
2:27:14
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
12:48/mi
2:35:58
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
14:59/mi
3:12:17
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
13:59/mi
3:55:44
↑ 181↓ 1480.2%
138 ft elev
20M
13:31/mi
4:14:06
↑ 64↓ 500.2%
148 ft elev
21M
15:12/mi
4:29:18
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
14:09/mi
4:39:53
↑ 17↓ 861.7%
156 ft elev
23M
13:05/mi
4:56:16
↑ 23↓ 630.6%
116 ft elev
24M
13:33/mi
5:09:49
↓ 821.3%
34 ft elev
40K· 24.85 mi
12:53/mi
5:20:50
↓ 200.3%
20 ft elev
25.2M
14:39/mi
5:25:53
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
12:54/mi
5:39:02
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
2:35:5811:54 /mi⚡ faster
2nd Half
3:03:0413:58 /mi+17.4%
Positive split — 17.4% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:0232:0210:1932:02
10:19
-
10K
6.21 mi12:26:401:06:4010:4434:38
11:09
+0:50
15K
9.32 mi13:04:101:44:1011:1137:30
12:04
+0:55
20K
12.43 mi13:47:142:27:1411:5143:04
13:52
+1:48
Half
13.11 mi13:55:582:35:5811:548:44
12:48
-1:04
25K
15.53 mi14:32:173:12:1712:2336:19
14:59
+2:11
30K
18.64 mi15:15:443:55:4412:3943:27
13:59
-1:00
20M
20.00 mi15:34:064:14:0612:4218:22
13:31
-0:28
21M
21.00 mi15:49:184:29:1812:4915:12
15:12
+1:41
35K
21.75 mi15:59:534:39:5312:5210:35
14:09
-1:03
23M
23.00 mi16:16:164:56:1612:5316:23
13:05
-1:04
24M
24.00 mi16:29:495:09:4912:5513:33
13:33
+0:28
40K
24.85 mi16:40:505:20:5012:5411:01
12:53
-0:40
25.2M
25.20 mi16:45:535:25:5312:565:03
14:39
+1:46
Finish
26.22 mi16:59:025:39:0212:5613:09
12:54
-1:45

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

10:19 /mi

Average Pace

12:56 /mi

Slowest Pace

15:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

1:52:54

33% of race

Time at Steady Pace

2:49:34

50% of race

Time at Slower Pace

56:34

17% of race

Average Pace: 12:56 /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 mi11:52:0232:0210:1932:02
10:19
#26317
10K
6.21 mi12:26:401:06:4010:4434:38
11:09
#26893
15K
9.32 mi13:04:101:44:1011:1137:30
12:04
#27287
20K
12.43 mi13:47:142:27:1411:5143:04
13:52
#27706
Half
13.11 mi13:55:582:35:5811:548:44
12:48
#27729
25K
15.53 mi14:32:173:12:1712:2336:19
14:59
#27871
30K
18.64 mi15:15:443:55:4412:3943:27
13:59
#27840
20M
20.00 mi15:34:064:14:0612:4218:22
13:31
#27782
21M
21.00 mi15:49:184:29:1812:4915:12
15:12
#27767
35K
21.75 mi15:59:534:39:5312:5210:35
14:09
#27785
23M
23.00 mi16:16:164:56:1612:5316:23
13:05
#27748
24M
24.00 mi16:29:495:09:4912:5513:33
13:33
#27734
40K
24.85 mi16:40:505:20:5012:5411:01
12:53
#27703
25.2M
25.20 mi16:45:535:25:5312:565:03
14:39
#27694
Finish
26.22 mi16:59:025:39:0212:5613:09
12:54
#27702
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi263171093410934276671179011790
10K6.21 mi3.10 mi26893-57611278-34411278-344272331150311503
15K9.32 mi3.11 mi27287-39411519-24111519-241276671179011790
20K12.43 mi3.11 mi27706-41911803-28411803-284281971211712117
Half13.11 mi0.68 mi27729-2311816-1311816-13279081194811948
25K15.53 mi2.42 mi27871-14211902-8611902-86282251213912139
30K18.64 mi3.11 mi27840+3111889+1311889+13274971178011780
20M20.00 mi1.36 mi27782+5811866+2311866+23269151151111511
21M21.00 mi1.00 mi27767+1511862+411862+4273141173511735
35K21.75 mi0.75 mi27785-1811877-1511877-15277511198511985
23M23.00 mi1.25 mi27748+3711860+1711860+17264801134011340
24M24.00 mi1.00 mi27734+1411859+111859+1273631183211832
40K24.85 mi0.85 mi27703+3111852+711852+7261721123111231
25.2M25.20 mi0.35 mi27694+911849+311849+3268441159011590
Finish26.22 mi1.02 mi27702-811858-911858-9275621189911899

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21story building
+97ft-345ft

Overall

27667

Females

11790

F50-54

11790

5K→10K

3.1 - 6.2 mi

Top 96%
×5story building
+79ft-138ft

Overall

27233

Females

11503

F50-54

11503

10K→15K

6.2 - 9.3 mi

Top 97%
×3story building
+67ft-78ft

Overall

27667

Females

11790

F50-54

11790

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

28197

Females

12117

F50-54

12117

20K→Half

12.4 - 13.1 mi

Top 98%
×2story building
+19ft-37ft

Overall

27908

Females

11948

F50-54

11948

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

28225

Females

12139

F50-54

12139

25K→30K

15.5 - 18.6 mi

Top 97%
×9story building
+181ft-148ft

Overall

27497

Females

11780

F50-54

11780

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

26915

Females

11511

F50-54

11511

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

27314

Females

11735

F50-54

11735

21M→35K

21.0 - 21.8 mi

Top 98%
×7story building
+17ft-86ft

Overall

27751

Females

11985

F50-54

11985

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

26480

Females

11340

F50-54

11340

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

27363

Females

11832

F50-54

11832

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26172

Females

11231

F50-54

11231

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

26844

Females

11590

F50-54

11590

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

27562

Females

11899

F50-54

11899

Passing Analysis

Category:
Athletes Passed
370
Passed By
1755
Net Change
-1385
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26317
5K → 10K29605-576#26317#26893
10K → 15K20414-394#26893#27287
15K → 20K7426-419#27287#27706
20K → Half528-23#27706#27729
Half → 25K16158-142#27729#27871
25K → 30K7039+31#27871#27840
30K → 20M613+58#27840#27782
20M → 21M3116+15#27782#27767
21M → 35K1129-18#27767#27785
35K → 23M447+37#27785#27748
23M → 24M228+14#27748#27734
24M → 40K354+31#27734#27703
40K → 25.2M101+9#27703#27694
25.2M → Finish917-8#27694#27702
TOTALS3701755-1385

Passing Charts

Category:
Loading...

Passing Circle

Loading...

Position Flow

Loading...

Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing