Boston Marathon logo
BOSTON MARATHON 2025

Caroline Gecker

Bib: 10413•F

CO

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 18%
Gender (Female)
#0 / 12228
Top 4%
Division (F18-39)
#0 / 5469
Top 7%
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
6:49/mi
21:11
↑ 97↓ 3451.5%
10K· 6.21 mi
6:48/mi
42:20
↑ 79↓ 1380.4%
15K· 9.32 mi
6:50/mi
1:03:35
↑ 67↓ 78
20K· 12.43 mi
6:49/mi
1:24:45
↑ 106↓ 860.1%
Half· 13.11 mi
6:45/mi
1:29:21
↑ 19↓ 370.5%
25K· 15.53 mi
6:50/mi
1:45:55
↑ 66↓ 880.2%
30K· 18.64 mi
7:04/mi
2:07:51
↑ 181↓ 1480.2%
20M
7:14/mi
2:17:41
↑ 64↓ 500.2%
21M
7:32/mi
2:25:13
↑ 106↓ 241.6%
35K· 21.75 mi
6:56/mi
2:30:24
↑ 17↓ 861.7%
23M
7:06/mi
2:39:17
↑ 23↓ 630.6%
24M
6:49/mi
2:46:06
↓ 821.3%
40K· 24.85 mi
6:55/mi
2:52:01
↓ 200.3%
25.2M
7:27/mi
2:54:35
↑ 13↓ 160.2%
Finish· 26.22 mi
6:34/mi
3:01:17
↑ 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
Time1:29:21
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:31:56
Pace7:01 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:0321:116:4921:11
6:49
-
10K
6.21 mi11:08:1242:206:4921:09
6:48
-0:01
15K
9.32 mi11:29:271:03:356:4921:15
6:50
+0:02
20K
12.43 mi11:50:371:24:456:4921:10
6:49
-0:01
Half
13.11 mi11:55:131:29:216:494:36
6:45
-0:04
25K
15.53 mi12:11:471:45:556:4916:34
6:50
+0:05
30K
18.64 mi12:33:432:07:516:5221:56
7:04
+0:14
20M
20.00 mi12:43:332:17:416:539:50
7:14
+0:10
21M
21.00 mi12:51:052:25:136:557:32
7:32
+0:18
35K
21.75 mi12:56:162:30:246:555:11
6:56
-0:36
23M
23.00 mi13:05:092:39:176:568:53
7:06
+0:10
24M
24.00 mi13:11:582:46:066:556:49
6:49
-0:17
40K
24.85 mi13:17:532:52:016:555:55
6:55
+0:06
25.2M
25.20 mi13:20:272:54:356:562:34
7:27
+0:32
Finish
26.22 mi13:27:093:01:176:556:42
6:34
-0:53

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

6:34 /mi

Average Pace

6:55 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:21

89% of race

Time at Steady Pace

19:56

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:55 /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 mi10:47:0321:116:4921:11
6:49
#6476
10K
6.21 mi11:08:1242:206:4921:09
6:48
#6436
15K
9.32 mi11:29:271:03:356:4921:15
6:50
#6429
20K
12.43 mi11:50:371:24:456:4921:10
6:49
#6111
Half
13.11 mi11:55:131:29:216:494:36
6:45
#6094
25K
15.53 mi12:11:471:45:556:4916:34
6:50
#5884
30K
18.64 mi12:33:432:07:516:5221:56
7:04
#5664
20M
20.00 mi12:43:332:17:416:539:50
7:14
#5625
21M
21.00 mi12:51:052:25:136:557:32
7:32
#5542
35K
21.75 mi12:56:162:30:246:555:11
6:56
#5499
23M
23.00 mi13:05:092:39:176:568:53
7:06
#5357
24M
24.00 mi13:11:582:46:066:556:49
6:49
#5245
40K
24.85 mi13:17:532:52:016:555:55
6:55
#5145
25.2M
25.20 mi13:20:272:54:356:562:34
7:27
#5085
Finish
26.22 mi13:27:093:01:176:556:42
6:34
#4977
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi64765645646490(Top 23%)614(Top 5%)614(Top 11%)
10K6.21 mi3.10 mi6436+40556+8556+86486(Top 23%)601(Top 5%)601(Top 11%)
15K9.32 mi3.11 mi6429+7571-15571-156490(Top 23%)614(Top 5%)614(Top 11%)
20K12.43 mi3.11 mi6111+318521+50521+505441(Top 19%)446(Top 4%)446(Top 8%)
Half13.11 mi0.68 mi6094+17526-5526-55712(Top 20%)474(Top 4%)474(Top 9%)
25K15.53 mi2.42 mi5884+210506+20506+205164(Top 18%)417(Top 3%)417(Top 8%)
30K18.64 mi3.11 mi5664+220481+25481+255086(Top 18%)467(Top 4%)467(Top 9%)
20M20.00 mi1.36 mi5625+39480+1480+15430(Top 19%)614(Top 5%)614(Top 11%)
21M21.00 mi1.00 mi5542+83474+6474+64801(Top 17%)555(Top 5%)555(Top 10%)
35K21.75 mi0.75 mi5499+43476-2476-24951(Top 17%)582(Top 5%)582(Top 11%)
23M23.00 mi1.25 mi5357+142462+14462+144328(Top 15%)484(Top 4%)484(Top 9%)
24M24.00 mi1.00 mi5245+112458+4458+43642(Top 13%)382(Top 3%)382(Top 7%)
40K24.85 mi0.85 mi5145+100453+5453+53501(Top 12%)381(Top 3%)381(Top 7%)
25.2M25.20 mi0.35 mi5085+60442+11442+113230(Top 11%)367(Top 3%)367(Top 7%)
Finish26.22 mi1.02 mi4977+108438+4438+43236(Top 11%)369(Top 3%)369(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21story building
+97ft-345ft

Overall

6490

Females

614

F18-39

614

5K→10K

3.1 - 6.2 mi

Top 23%
×5story building
+79ft-138ft

Overall

6486

Females

601

F18-39

601

10K→15K

6.2 - 9.3 mi

Top 23%
×3story building
+67ft-78ft

Overall

6490

Females

614

F18-39

614

15K→20K

9.3 - 12.4 mi

Top 19%
×5story building
+106ft-86ft

Overall

5441

Females

446

F18-39

446

20K→Half

12.4 - 13.1 mi

Top 20%
×2story building
+19ft-37ft

Overall

5712

Females

474

F18-39

474

Half→25K

13.1 - 15.5 mi

Top 18%
×4story building
+66ft-88ft

Overall

5164

Females

417

F18-39

417

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

5086

Females

467

F18-39

467

30K→20M

18.6 - 20.0 mi

Top 19%
×5story building
+64ft-50ft

Overall

5430

Females

614

F18-39

614

20M→21M

20.0 - 21.0 mi

Top 17%
×8story building
+106ft-24ft

Overall

4801

Females

555

F18-39

555

21M→35K

21.0 - 21.8 mi

Top 17%
×7story building
+17ft-86ft

Overall

4951

Females

582

F18-39

582

35K→23M

21.8 - 23.0 mi

Top 15%
×5story building
+23ft-63ft

Overall

4328

Females

484

F18-39

484

23M→24M

23.0 - 24.0 mi

Top 13%
×6story building
+12ft-82ft

Overall

3642

Females

382

F18-39

382

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3501

Females

381

F18-39

381

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3230

Females

367

F18-39

367

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2story building
+22ft-21ft

Overall

3236

Females

369

F18-39

369

Passing Analysis

Category:
Athletes Passed
2067
Passed By
568
Net Change
+1499
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6476
5K → 10K200160+40#6476#6436
10K → 15K159152+7#6436#6429
15K → 20K33214+318#6429#6111
20K → Half2811+17#6111#6094
Half → 25K24131+210#6094#5884
25K → 30K28161+220#5884#5664
30K → 20M9051+39#5664#5625
20M → 21M11027+83#5625#5542
21M → 35K6421+43#5542#5499
35K → 23M15917+142#5499#5357
23M → 24M12210+112#5357#5245
24M → 40K1077+100#5245#5145
40K → 25.2M633+60#5145#5085
25.2M → Finish1113+108#5085#4977
TOTALS2067568+1499
📊

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