Boston Marathon logo
BOSTON MARATHON 2025

Kayla Coffey

NH

Bib: 17990 F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 40%
Gender (Female)
#0 / 12228
Top 24%
Division (F18-39)
#0 / 5469
Top 41%
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
7:38/mi
23:43
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:31/mi
47:05
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:31/mi
1:10:26
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:36/mi
1:34:02
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:30/mi
1:39:09
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:42/mi
1:57:50
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:06/mi
2:22:59
↑ 181↓ 1480.2%
138 ft elev
20M
8:10/mi
2:34:05
↑ 64↓ 500.2%
148 ft elev
21M
8:41/mi
2:42:46
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:45/mi
2:48:34
↑ 17↓ 861.7%
156 ft elev
23M
7:58/mi
2:58:32
↑ 23↓ 630.6%
116 ft elev
24M
8:01/mi
3:06:33
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:16/mi
3:13:37
↓ 200.3%
20 ft elev
25.2M
8:36/mi
3:16:35
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:37/mi
3:24:21
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Is this your race?

Claim it for a free AI report on this race

A one-of-a-kind AI Race Performance Report that reads your race like a coach. A plain-English story of how you raced, where you surged and faded, and what it all means. Emailed to you, free.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:09
Pace7:34 /mi
2nd Half
Distance13.11 mi
Time1:45:12
Pace8:01 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1623:437:3823:43
7:38
-
10K
6.21 mi11:37:3847:057:3523:22
7:31
-0:07
15K
9.32 mi12:00:591:10:267:3323:21
7:31
0:00
20K
12.43 mi12:24:351:34:027:3423:36
7:36
+0:05
Half
13.11 mi12:29:421:39:097:345:07
7:30
-0:06
25K
15.53 mi12:48:231:57:507:3518:41
7:42
+0:12
30K
18.64 mi13:13:322:22:597:4025:09
8:06
+0:24
20M
20.00 mi13:24:382:34:057:4211:06
8:10
+0:04
21M
21.00 mi13:33:192:42:467:458:41
8:41
+0:31
35K
21.75 mi13:39:072:48:347:455:48
7:45
-0:56
23M
23.00 mi13:49:052:58:327:469:58
7:58
+0:13
24M
24.00 mi13:57:063:06:337:468:01
8:01
+0:03
40K
24.85 mi14:04:103:13:377:477:04
8:16
+0:15
25.2M
25.20 mi14:07:083:16:357:482:58
8:36
+0:20
Finish
26.22 mi14:14:543:24:217:487:46
7:37
-0:59

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

7:30 /mi

Average Pace

7:48 /mi

Slowest Pace

8:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:38

91% of race

Time at Steady Pace

18:43

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:48 /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 mi11:14:1623:437:3823:43
7:38
#13386
10K
6.21 mi11:37:3847:057:3523:22
7:31
#12822
15K
9.32 mi12:00:591:10:267:3323:21
7:31
#12489
20K
12.43 mi12:24:351:34:027:3423:36
7:36
#12215
Half
13.11 mi12:29:421:39:097:345:07
7:30
#12192
25K
15.53 mi12:48:231:57:507:3518:41
7:42
#12054
30K
18.64 mi13:13:322:22:597:4025:09
8:06
#12003
20M
20.00 mi13:24:382:34:057:4211:06
8:10
#11952
21M
21.00 mi13:33:192:42:467:458:41
8:41
#11892
35K
21.75 mi13:39:072:48:347:455:48
7:45
#11830
23M
23.00 mi13:49:052:58:327:469:58
7:58
#11668
24M
24.00 mi13:57:063:06:337:468:01
8:01
#11612
40K
24.85 mi14:04:103:13:377:477:04
8:16
#11602
25.2M
25.20 mi14:07:083:16:357:482:58
8:36
#11551
Finish
26.22 mi14:14:543:24:217:487:46
7:37
#11462
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi133863536353611912(Top 42%)2855(Top 23%)2855(Top 52%)
10K6.21 mi3.10 mi12822+5643244+2923244+29212311(Top 43%)2983(Top 24%)2983(Top 55%)
15K9.32 mi3.11 mi12489+3333098+1463098+14611912(Top 42%)2855(Top 23%)2855(Top 52%)
20K12.43 mi3.11 mi12215+2742989+1092989+10911593(Top 41%)2784(Top 23%)2784(Top 51%)
Half13.11 mi0.68 mi12192+232984+52984+511776(Top 41%)2815(Top 23%)2815(Top 51%)
25K15.53 mi2.42 mi12054+1382947+372947+3711604(Top 41%)2908(Top 24%)2908(Top 53%)
30K18.64 mi3.11 mi12003+512997-502997-5012069(Top 42%)3320(Top 27%)3320(Top 61%)
20M20.00 mi1.36 mi11952+513007-103007-1011610(Top 41%)3232(Top 26%)3232(Top 59%)
21M21.00 mi1.00 mi11892+603017-103017-1011594(Top 41%)3392(Top 28%)3392(Top 62%)
35K21.75 mi0.75 mi11830+623006+113006+1110513(Top 37%)2864(Top 23%)2864(Top 52%)
23M23.00 mi1.25 mi11668+1622963+432963+439774(Top 34%)2630(Top 22%)2630(Top 48%)
24M24.00 mi1.00 mi11612+562977-142977-1411380(Top 40%)3503(Top 29%)3503(Top 64%)
40K24.85 mi0.85 mi11602+103000-233000-2311980(Top 42%)3901(Top 32%)3901(Top 71%)
25.2M25.20 mi0.35 mi11551+512988+122988+129509(Top 33%)2786(Top 23%)2786(Top 51%)
Finish26.22 mi1.02 mi11462+892987+12987+110130(Top 36%)3050(Top 25%)3050(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11912

Females

2855

F18-39

2855

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

12311

Females

2983

F18-39

2983

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11912

Females

2855

F18-39

2855

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11593

Females

2784

F18-39

2784

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11776

Females

2815

F18-39

2815

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

11604

Females

2908

F18-39

2908

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

12069

Females

3320

F18-39

3320

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

11610

Females

3232

F18-39

3232

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

11594

Females

3392

F18-39

3392

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

10513

Females

2864

F18-39

2864

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9774

Females

2630

F18-39

2630

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11380

Females

3503

F18-39

3503

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11980

Females

3901

F18-39

3901

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9509

Females

2786

F18-39

2786

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

10130

Females

3050

F18-39

3050

Passing Analysis

Category:
Athletes Passed
2847
Passed By
923
Net Change
+1924
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13386
5K → 10K65187+564#13386#12822
10K → 15K39158+333#12822#12489
15K → 20K33662+274#12489#12215
20K → Half4421+23#12215#12192
Half → 25K22587+138#12192#12054
25K → 30K266215+51#12054#12003
30K → 20M13786+51#12003#11952
20M → 21M12767+60#11952#11892
21M → 35K8220+62#11892#11830
35K → 23M19432+162#11830#11668
23M → 24M11458+56#11668#11612
24M → 40K8676+10#11612#11602
40K → 25.2M6312+51#11602#11551
25.2M → Finish13142+89#11551#11462
TOTALS2847923+1924
📊

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