Boston Marathon logo
BOSTON MARATHON 2025

Kelsey Chope

CA

Bib: 15607 F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 44%
Gender (Female)
#0 / 12228
Top 28%
Division (F18-39)
#0 / 5469
Top 46%
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
7:33/mi
23:26
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:42/mi
47:22
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:40/mi
1:11:12
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:46/mi
1:35:20
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:50/mi
1:40:41
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:51/mi
1:59:42
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:09/mi
2:25:00
↑ 181↓ 1480.2%
138 ft elev
20M
8:16/mi
2:36:14
↑ 64↓ 500.2%
148 ft elev
21M
8:32/mi
2:44:46
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:09/mi
2:50:52
↑ 17↓ 861.7%
156 ft elev
23M
8:17/mi
3:01:14
↑ 23↓ 630.6%
116 ft elev
24M
8:12/mi
3:09:26
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:09/mi
3:16:24
↓ 200.3%
20 ft elev
25.2M
8:45/mi
3:19:25
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:43/mi
3:27:17
↑ 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

A coach's-eye read of your race — emailed to you, free.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:41
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:46:36
Pace8:08 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5723:267:3323:26
7:33
-
10K
6.21 mi11:18:5347:227:3723:56
7:42
+0:09
15K
9.32 mi11:42:431:11:127:3823:50
7:40
-0:02
20K
12.43 mi12:06:511:35:207:4024:08
7:46
+0:06
Half
13.11 mi12:12:121:40:417:415:21
7:50
+0:04
25K
15.53 mi12:31:131:59:427:4219:01
7:51
+0:01
30K
18.64 mi12:56:312:25:007:4725:18
8:09
+0:18
20M
20.00 mi13:07:452:36:147:4911:14
8:16
+0:07
21M
21.00 mi13:16:172:44:467:518:32
8:32
+0:16
35K
21.75 mi13:22:232:50:527:516:06
8:09
-0:23
23M
23.00 mi13:32:453:01:147:5310:22
8:17
+0:08
24M
24.00 mi13:40:573:09:267:548:12
8:12
-0:05
40K
24.85 mi13:47:553:16:247:546:58
8:09
-0:03
25.2M
25.20 mi13:50:563:19:257:553:01
8:45
+0:36
Finish
26.22 mi13:58:483:27:177:557:52
7:43
-1:02

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

7:33 /mi

Average Pace

7:55 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:44

94% of race

Time at Steady Pace

11:33

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:54 /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 mi10:54:5723:267:3323:26
7:33
#12629
10K
6.21 mi11:18:5347:227:3723:56
7:42
#13249
15K
9.32 mi11:42:431:11:127:3823:50
7:40
#13225
20K
12.43 mi12:06:511:35:207:4024:08
7:46
#13120
Half
13.11 mi12:12:121:40:417:415:21
7:50
#13194
25K
15.53 mi12:31:131:59:427:4219:01
7:51
#13064
30K
18.64 mi12:56:312:25:007:4725:18
8:09
#12890
20M
20.00 mi13:07:452:36:147:4911:14
8:16
#12831
21M
21.00 mi13:16:172:44:467:518:32
8:32
#12662
35K
21.75 mi13:22:232:50:527:516:06
8:09
#12681
23M
23.00 mi13:32:453:01:147:5310:22
8:17
#12607
24M
24.00 mi13:40:573:09:267:548:12
8:12
#12587
40K
24.85 mi13:47:553:16:247:546:58
8:09
#12492
25.2M
25.20 mi13:50:563:19:257:553:01
8:45
#12449
Finish
26.22 mi13:58:483:27:177:557:52
7:43
#12358
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi12629312531251323135693569
10K6.21 mi3.10 mi13249-6203494-3693494-3691393339203920
15K9.32 mi3.11 mi13225+243529-353529-351323135693569
20K12.43 mi3.11 mi13120+1053511+183511+181302135633563
Half13.11 mi0.68 mi13194-743555-443555-441462143884388
25K15.53 mi2.42 mi13064+1303511+443511+441270234993499
30K18.64 mi3.11 mi12890+1743480+313480+311239935013501
20M20.00 mi1.36 mi12831+593486-63486-61228435843584
21M21.00 mi1.00 mi12662+1693426+603426+601072529732973
35K21.75 mi0.75 mi12681-193463-373463-371331543144314
23M23.00 mi1.25 mi12607+743453+103453+101193837053705
24M24.00 mi1.00 mi12587+203467-143467-141258140924092
40K24.85 mi0.85 mi12492+953454+133454+131124635303530
25.2M25.20 mi0.35 mi12449+433446+83446+81037532113211
Finish26.22 mi1.02 mi12358+913438+83438+81087934003400

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

13231

Females

3569

F18-39

3569

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13933

Females

3920

F18-39

3920

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

13231

Females

3569

F18-39

3569

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

13021

Females

3563

F18-39

3563

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

14621

Females

4388

F18-39

4388

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

12702

Females

3499

F18-39

3499

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

12399

Females

3501

F18-39

3501

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

12284

Females

3584

F18-39

3584

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10725

Females

2973

F18-39

2973

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

13315

Females

4314

F18-39

4314

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11938

Females

3705

F18-39

3705

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

12581

Females

4092

F18-39

4092

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11246

Females

3530

F18-39

3530

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10375

Females

3211

F18-39

3211

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2story building
+22ft-21ft

Overall

10879

Females

3400

F18-39

3400

Passing Analysis

Category:
Athletes Passed
2051
Passed By
1780
Net Change
+271
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12629
5K → 10K91711-620#12629#13249
10K → 15K208184+24#13249#13225
15K → 20K254149+105#13225#13120
20K → Half1690-74#13120#13194
Half → 25K21787+130#13194#13064
25K → 30K315141+174#13064#12890
30K → 20M15798+59#12890#12831
20M → 21M19728+169#12831#12662
21M → 35K5978-19#12662#12681
35K → 23M14571+74#12681#12607
23M → 24M8464+20#12607#12587
24M → 40K12025+95#12587#12492
40K → 25.2M5916+43#12492#12449
25.2M → Finish12938+91#12449#12358
TOTALS20511780+271

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