Boston Marathon logo
BOSTON MARATHON 2025

Caroline Miller

Bib: 26212•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 43%
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
8:47/mi
27:17
↑ 97↓ 3451.5%
10K· 6.21 mi
8:17/mi
53:01
↑ 79↓ 1380.4%
15K· 9.32 mi
8:04/mi
1:18:06
↑ 67↓ 78
20K· 12.43 mi
8:10/mi
1:43:28
↑ 106↓ 860.1%
Half· 13.11 mi
7:48/mi
1:48:47
↑ 19↓ 370.5%
25K· 15.53 mi
7:50/mi
2:07:46
↑ 66↓ 880.2%
30K· 18.64 mi
8:24/mi
2:33:53
↑ 181↓ 1480.2%
20M
8:23/mi
2:45:16
↑ 64↓ 500.2%
21M
8:34/mi
2:53:50
↑ 106↓ 241.6%
35K· 21.75 mi
8:31/mi
3:00:12
↑ 17↓ 861.7%
23M
9:05/mi
3:11:34
↑ 23↓ 630.6%
24M
8:52/mi
3:20:26
↓ 821.3%
40K· 24.85 mi
9:04/mi
3:28:11
↓ 200.3%
25.2M
9:05/mi
3:31:19
↑ 13↓ 160.2%
Finish· 26.22 mi
8:01/mi
3:39:29
↑ 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
Time1:48:47
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time1:50:42
Pace8:27 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:5727:178:4727:17
8:47
-
10K
6.21 mi12:08:4153:018:3225:44
8:17
-0:30
15K
9.32 mi12:33:461:18:068:2325:05
8:04
-0:13
20K
12.43 mi12:59:081:43:288:2025:22
8:10
+0:06
Half
13.11 mi13:04:271:48:478:185:19
7:48
-0:22
25K
15.53 mi13:23:262:07:468:1318:59
7:50
+0:02
30K
18.64 mi13:49:332:33:538:1526:07
8:24
+0:34
20M
20.00 mi14:00:562:45:168:1611:23
8:23
-0:01
21M
21.00 mi14:09:302:53:508:178:34
8:34
+0:11
35K
21.75 mi14:15:523:00:128:176:22
8:31
-0:03
23M
23.00 mi14:27:143:11:348:2011:22
9:05
+0:34
24M
24.00 mi14:36:063:20:268:218:52
8:52
-0:13
40K
24.85 mi14:43:513:28:118:237:45
9:04
+0:12
25.2M
25.20 mi14:46:593:31:198:233:08
9:05
+0:01
Finish
26.22 mi14:55:093:39:298:238:10
8:01
-1:04

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

7:48 /mi

Average Pace

8:23 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:05

73% of race

Time at Steady Pace

58:24

27% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:22 /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 mi11:42:5727:178:4727:17
8:47
#21409
10K
6.21 mi12:08:4153:018:3225:44
8:17
#20027
15K
9.32 mi12:33:461:18:068:2325:05
8:04
#18906
20K
12.43 mi12:59:081:43:288:2025:22
8:10
#18160
Half
13.11 mi13:04:271:48:478:185:19
7:48
#17968
25K
15.53 mi13:23:262:07:468:1318:59
7:50
#17104
30K
18.64 mi13:49:332:33:538:1526:07
8:24
#16560
20M
20.00 mi14:00:562:45:168:1611:23
8:23
#16272
21M
21.00 mi14:09:302:53:508:178:34
8:34
#15936
35K
21.75 mi14:15:523:00:128:176:22
8:31
#15874
23M
23.00 mi14:27:143:11:348:2011:22
9:05
#15878
24M
24.00 mi14:36:063:20:268:218:52
8:52
#15914
40K
24.85 mi14:43:513:28:118:237:45
9:04
#15914
25.2M
25.20 mi14:46:593:31:198:233:08
9:05
#15846
Finish
26.22 mi14:55:093:39:298:238:10
8:01
#15741
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi214098302830216583(Top 58%)5486(Top 45%)5486(Top 100%)
10K6.21 mi3.10 mi20027+13827481+8217481+82118435(Top 65%)6559(Top 54%)6559(Top 120%)
15K9.32 mi3.11 mi18906+11216855+6266855+62616583(Top 58%)5486(Top 45%)5486(Top 100%)
20K12.43 mi3.11 mi18160+7466430+4256430+42516090(Top 57%)5270(Top 43%)5270(Top 96%)
Half13.11 mi0.68 mi17968+1926319+1116319+11114305(Top 50%)4256(Top 35%)4256(Top 78%)
25K15.53 mi2.42 mi17104+8645826+4935826+49312604(Top 44%)3458(Top 28%)3458(Top 63%)
30K18.64 mi3.11 mi16560+5445561+2655561+26514182(Top 50%)4478(Top 37%)4478(Top 82%)
20M20.00 mi1.36 mi16272+2885417+1445417+14413030(Top 46%)4001(Top 33%)4001(Top 73%)
21M21.00 mi1.00 mi15936+3365267+1505267+15010946(Top 39%)3083(Top 25%)3083(Top 56%)
35K21.75 mi0.75 mi15874+625252+155252+1515560(Top 55%)5550(Top 45%)5550(Top 101%)
23M23.00 mi1.25 mi15878-45298-465298-4616709(Top 59%)6276(Top 51%)6276(Top 115%)
24M24.00 mi1.00 mi15914-365329-315329-3116680(Top 59%)6305(Top 52%)6305(Top 115%)
40K24.85 mi0.85 mi159145355-265355-2616701(Top 59%)6419(Top 52%)6419(Top 117%)
25.2M25.20 mi0.35 mi15846+685330+255330+2512399(Top 44%)4198(Top 34%)4198(Top 77%)
Finish26.22 mi1.02 mi15741+1055295+355295+3513011(Top 46%)4447(Top 36%)4447(Top 81%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

16583

Females

5486

F18-39

5486

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

18435

Females

6559

F18-39

6559

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

16583

Females

5486

F18-39

5486

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

16090

Females

5270

F18-39

5270

20K→Half

12.4 - 13.1 mi

Top 50%
×2story building
+19ft-37ft

Overall

14305

Females

4256

F18-39

4256

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

12604

Females

3458

F18-39

3458

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

14182

Females

4478

F18-39

4478

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

13030

Females

4001

F18-39

4001

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

10946

Females

3083

F18-39

3083

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

15560

Females

5550

F18-39

5550

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

16709

Females

6276

F18-39

6276

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

16680

Females

6305

F18-39

6305

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16701

Females

6419

F18-39

6419

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12399

Females

4198

F18-39

4198

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

13011

Females

4447

F18-39

4447

Passing Analysis

Category:
Athletes Passed
6068
Passed By
400
Net Change
+5668
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21409
5K → 10K141028+1382#21409#20027
10K → 15K11221+1121#20027#18906
15K → 20K7537+746#18906#18160
20K → Half1920+192#18160#17968
Half → 25K8640+864#17968#17104
25K → 30K56117+544#17104#16560
30K → 20M2957+288#16560#16272
20M → 21M3393+336#16272#15936
21M → 35K9634+62#15936#15874
35K → 23M113117-4#15874#15878
23M → 24M5591-36#15878#15914
24M → 40K68680#15914#15914
40K → 25.2M735+68#15914#15846
25.2M → Finish12722+105#15846#15741
TOTALS6068400+5668
📊

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