Boston Marathon logo
BOSTON MARATHON 2025

Britteny Jenkins

Bib: 31914•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
9:44/mi
30:15
↑ 97↓ 3451.5%
10K· 6.21 mi
9:42/mi
1:00:24
↑ 79↓ 1380.4%
15K· 9.32 mi
9:36/mi
1:30:14
↑ 67↓ 78
20K· 12.43 mi
9:29/mi
1:59:43
↑ 106↓ 860.1%
Half· 13.11 mi
9:26/mi
2:06:09
↑ 19↓ 370.5%
25K· 15.53 mi
9:45/mi
2:29:48
↑ 66↓ 880.2%
30K· 18.64 mi
10:01/mi
3:00:54
↑ 181↓ 1480.2%
20M
9:58/mi
3:14:27
↑ 64↓ 500.2%
21M
10:11/mi
3:24:38
↑ 106↓ 241.6%
35K· 21.75 mi
9:23/mi
3:31:39
↑ 17↓ 861.7%
23M
10:01/mi
3:44:11
↑ 23↓ 630.6%
24M
9:38/mi
3:53:49
↓ 821.3%
40K· 24.85 mi
9:46/mi
4:02:10
↓ 200.3%
25.2M
11:01/mi
4:05:58
↑ 13↓ 160.2%
Finish· 26.22 mi
9:25/mi
4:15:34
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:09
Pace9:37 /mi
2nd Half
Distance13.11 mi
Time2:09:25
Pace9:52 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:2930:159:4430:15
9:44
-
10K
6.21 mi12:23:381:00:249:4330:09
9:42
-0:02
15K
9.32 mi12:53:281:30:149:4129:50
9:36
-0:06
20K
12.43 mi13:22:571:59:439:3829:29
9:29
-0:07
Half
13.11 mi13:29:232:06:099:376:26
9:26
-0:03
25K
15.53 mi13:53:022:29:489:3923:39
9:45
+0:19
30K
18.64 mi14:24:083:00:549:4231:06
10:01
+0:16
20M
20.00 mi14:37:413:14:279:4313:33
9:58
-0:03
21M
21.00 mi14:47:523:24:389:4510:11
10:11
+0:13
35K
21.75 mi14:54:533:31:399:447:01
9:23
-0:48
23M
23.00 mi15:07:253:44:119:4512:32
10:01
+0:38
24M
24.00 mi15:17:033:53:499:459:38
9:38
-0:23
40K
24.85 mi15:25:244:02:109:458:21
9:46
+0:08
25.2M
25.20 mi15:29:124:05:589:463:48
11:01
+1:15
Finish
26.22 mi15:38:484:15:349:459:36
9:25
-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

9:23 /mi

Average Pace

9:45 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:11:46

99% of race

Time at Steady Pace

3:48

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:45 /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 mi11:53:2930:159:4430:15
9:44
#24936
10K
6.21 mi12:23:381:00:249:4330:09
9:42
#24783
15K
9.32 mi12:53:281:30:149:4129:50
9:36
#24535
20K
12.43 mi13:22:571:59:439:3829:29
9:29
#24124
Half
13.11 mi13:29:232:06:099:376:26
9:26
#24073
25K
15.53 mi13:53:022:29:489:3923:39
9:45
#23816
30K
18.64 mi14:24:083:00:549:4231:06
10:01
#23420
20M
20.00 mi14:37:413:14:279:4313:33
9:58
#23214
21M
21.00 mi14:47:523:24:389:4510:11
10:11
#22991
35K
21.75 mi14:54:533:31:399:447:01
9:23
#22887
23M
23.00 mi15:07:253:44:119:4512:32
10:01
#22754
24M
24.00 mi15:17:033:53:499:459:38
9:38
#22614
40K
24.85 mi15:25:244:02:109:458:21
9:46
#22512
25.2M
25.20 mi15:29:124:05:589:463:48
11:01
#22480
Finish
26.22 mi15:38:484:15:349:459:36
9:25
#22423
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24936101751017524028(Top 85%)9685(Top 79%)9685(Top 177%)
10K6.21 mi3.10 mi24783+15310108+6710108+6724627(Top 87%)10033(Top 82%)10033(Top 183%)
15K9.32 mi3.11 mi24535+2489976+1329976+13224028(Top 85%)9685(Top 79%)9685(Top 177%)
20K12.43 mi3.11 mi24124+4119760+2169760+21622872(Top 81%)9079(Top 74%)9079(Top 166%)
Half13.11 mi0.68 mi24073+519730+309730+3023365(Top 82%)9351(Top 76%)9351(Top 171%)
25K15.53 mi2.42 mi23816+2579595+1359595+13522659(Top 80%)9013(Top 74%)9013(Top 165%)
30K18.64 mi3.11 mi23420+3969413+1829413+18221634(Top 76%)8577(Top 70%)8577(Top 157%)
20M20.00 mi1.36 mi23214+2069322+919322+9120859(Top 73%)8283(Top 68%)8283(Top 151%)
21M21.00 mi1.00 mi22991+2239223+999223+9918992(Top 67%)7334(Top 60%)7334(Top 134%)
35K21.75 mi0.75 mi22887+1049178+459178+4519910(Top 70%)7941(Top 65%)7941(Top 145%)
23M23.00 mi1.25 mi22754+1339129+499129+4920539(Top 72%)8320(Top 68%)8320(Top 152%)
24M24.00 mi1.00 mi22614+1409078+519078+5120154(Top 71%)8168(Top 67%)8168(Top 149%)
40K24.85 mi0.85 mi22512+1029038+409038+4019728(Top 69%)8014(Top 66%)8014(Top 147%)
25.2M25.20 mi0.35 mi22480+329029+99029+920756(Top 73%)8540(Top 70%)8540(Top 156%)
Finish26.22 mi1.02 mi22423+579014+159014+1520916(Top 74%)8619(Top 70%)8619(Top 158%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

24028

Females

9685

F18-39

9685

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

24627

Females

10033

F18-39

10033

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

24028

Females

9685

F18-39

9685

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

22872

Females

9079

F18-39

9079

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

23365

Females

9351

F18-39

9351

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

22659

Females

9013

F18-39

9013

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21634

Females

8577

F18-39

8577

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

20859

Females

8283

F18-39

8283

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

18992

Females

7334

F18-39

7334

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

19910

Females

7941

F18-39

7941

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

20539

Females

8320

F18-39

8320

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

20154

Females

8168

F18-39

8168

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19728

Females

8014

F18-39

8014

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20756

Females

8540

F18-39

8540

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

20916

Females

8619

F18-39

8619

Passing Analysis

Category:
Athletes Passed
2785
Passed By
272
Net Change
+2513
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24936
5K → 10K278125+153#24936#24783
10K → 15K28739+248#24783#24535
15K → 20K4209+411#24535#24124
20K → Half565+51#24124#24073
Half → 25K27619+257#24073#23816
25K → 30K41822+396#23816#23420
30K → 20M2104+206#23420#23214
20M → 21M2241+223#23214#22991
21M → 35K1095+104#22991#22887
35K → 23M1429+133#22887#22754
23M → 24M1433+140#22754#22614
24M → 40K1086+102#22614#22512
40K → 25.2M397+32#22512#22480
25.2M → Finish7518+57#22480#22423
TOTALS2785272+2513
📊

Passing Visuals

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