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BOSTON MARATHON 2025

Caroline Harkins

Bib: 27789•F

MA

0:00
0:00
/ mi
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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
8:52/mi
27:34
↑ 97↓ 3451.5%
10K· 6.21 mi
8:50/mi
55:00
↑ 79↓ 1380.4%
15K· 9.32 mi
8:52/mi
1:22:33
↑ 67↓ 78
20K· 12.43 mi
9:00/mi
1:50:30
↑ 106↓ 860.1%
Half· 13.11 mi
8:48/mi
1:56:30
↑ 19↓ 370.5%
25K· 15.53 mi
9:14/mi
2:18:53
↑ 66↓ 880.2%
30K· 18.64 mi
9:34/mi
2:48:35
↑ 181↓ 1480.2%
20M
11:22/mi
3:04:02
↑ 64↓ 500.2%
21M
10:40/mi
3:14:42
↑ 106↓ 241.6%
35K· 21.75 mi
10:47/mi
3:22:46
↑ 17↓ 861.7%
23M
11:52/mi
3:37:37
↑ 23↓ 630.6%
24M
11:16/mi
3:48:53
↓ 821.3%
40K· 24.85 mi
12:10/mi
3:59:17
↓ 200.3%
25.2M
12:37/mi
4:03:38
↑ 13↓ 160.2%
Finish· 26.22 mi
9:12/mi
4:13:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:30
Pace8:53 /mi
2nd Half
Distance13.11 mi
Time2:16:31
Pace10:25 /mi
📊Positive Split: 17.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:5027:348:5227:34
8:52
-
10K
6.21 mi12:12:1655:008:5127:26
8:50
-0:02
15K
9.32 mi12:39:491:22:338:5127:33
8:52
+0:02
20K
12.43 mi13:07:461:50:308:5327:57
9:00
+0:08
Half
13.11 mi13:13:461:56:308:536:00
8:48
-0:12
25K
15.53 mi13:36:092:18:538:5622:23
9:14
+0:26
30K
18.64 mi14:05:512:48:359:0329:42
9:34
+0:20
20M
20.00 mi14:21:183:04:029:1215:27
11:22
+1:48
21M
21.00 mi14:31:583:14:429:1610:40
10:40
-0:42
35K
21.75 mi14:40:023:22:469:198:04
10:47
+0:07
23M
23.00 mi14:54:533:37:379:2814:51
11:52
+1:05
24M
24.00 mi15:06:093:48:539:3211:16
11:16
-0:36
40K
24.85 mi15:16:333:59:179:3810:24
12:10
+0:54
25.2M
25.20 mi15:20:544:03:389:404:21
12:37
+0:27
Finish
26.22 mi15:30:174:13:019:399:23
9:12
-3:25

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

8:48 /mi

Average Pace

9:39 /mi

Slowest Pace

12:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:33

35% of race

Time at Steady Pace

1:29:25

35% of race

Time at Slower Pace

1:15:03

30% of race

Average Pace: 9:39 /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 mi11:44:5027:348:5227:34
8:52
#21880
10K
6.21 mi12:12:1655:008:5127:26
8:50
#21718
15K
9.32 mi12:39:491:22:338:5127:33
8:52
#21567
20K
12.43 mi13:07:461:50:308:5327:57
9:00
#21405
Half
13.11 mi13:13:461:56:308:536:00
8:48
#21372
25K
15.53 mi13:36:092:18:538:5622:23
9:14
#21299
30K
18.64 mi14:05:512:48:359:0329:42
9:34
#21081
20M
20.00 mi14:21:183:04:029:1215:27
11:22
#21470
21M
21.00 mi14:31:583:14:429:1610:40
10:40
#21411
35K
21.75 mi14:40:023:22:469:198:04
10:47
#21563
23M
23.00 mi14:54:533:37:379:2814:51
11:52
#21827
24M
24.00 mi15:06:093:48:539:3211:16
11:16
#21981
40K
24.85 mi15:16:333:59:179:3810:24
12:10
#22171
25.2M
25.20 mi15:20:544:03:389:404:21
12:37
#22219
Finish
26.22 mi15:30:174:13:019:399:23
9:12
#22123
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi218808561856121396(Top 75%)8216(Top 67%)8216(Top 150%)
10K6.21 mi3.10 mi21718+1628451+1108451+11021561(Top 76%)8349(Top 68%)8349(Top 153%)
15K9.32 mi3.11 mi21567+1518343+1088343+10821396(Top 75%)8216(Top 67%)8216(Top 150%)
20K12.43 mi3.11 mi21405+1628267+768267+7620960(Top 74%)8035(Top 66%)8035(Top 147%)
Half13.11 mi0.68 mi21372+338245+228245+2220942(Top 74%)8025(Top 66%)8025(Top 147%)
25K15.53 mi2.42 mi21299+738212+338212+3320922(Top 74%)8053(Top 66%)8053(Top 147%)
30K18.64 mi3.11 mi21081+2188130+828130+8220196(Top 71%)7763(Top 63%)7763(Top 142%)
20M20.00 mi1.36 mi21470-3898357-2278357-22724314(Top 86%)10121(Top 83%)10121(Top 185%)
21M21.00 mi1.00 mi21411+598344+138344+1320534(Top 72%)8207(Top 67%)8207(Top 150%)
35K21.75 mi0.75 mi21563-1528437-938437-9323780(Top 84%)9934(Top 81%)9934(Top 182%)
23M23.00 mi1.25 mi21827-2648623-1868623-18624896(Top 88%)10546(Top 86%)10546(Top 193%)
24M24.00 mi1.00 mi21981-1548729-1068729-10624504(Top 86%)10383(Top 85%)10383(Top 190%)
40K24.85 mi0.85 mi22171-1908850-1218850-12125187(Top 89%)10758(Top 88%)10758(Top 197%)
25.2M25.20 mi0.35 mi22219-488879-298879-2924426(Top 86%)10384(Top 85%)10384(Top 190%)
Finish26.22 mi1.02 mi22123+968851+288851+2820008(Top 70%)8156(Top 67%)8156(Top 149%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

21396

Females

8216

F18-39

8216

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

21561

Females

8349

F18-39

8349

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

21396

Females

8216

F18-39

8216

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

20960

Females

8035

F18-39

8035

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

20942

Females

8025

F18-39

8025

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

20922

Females

8053

F18-39

8053

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

20196

Females

7763

F18-39

7763

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

24314

Females

10121

F18-39

10121

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

20534

Females

8207

F18-39

8207

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23780

Females

9934

F18-39

9934

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

24896

Females

10546

F18-39

10546

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

24504

Females

10383

F18-39

10383

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

25187

Females

10758

F18-39

10758

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

24426

Females

10384

F18-39

10384

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

20008

Females

8156

F18-39

8156

Passing Analysis

Category:
Athletes Passed
1808
Passed By
2051
Net Change
-243
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21880
5K → 10K358196+162#21880#21718
10K → 15K285134+151#21718#21567
15K → 20K284122+162#21567#21405
20K → Half5320+33#21405#21372
Half → 25K182109+73#21372#21299
25K → 30K30991+218#21299#21081
30K → 20M28417-389#21081#21470
20M → 21M11253+59#21470#21411
21M → 35K21173-152#21411#21563
35K → 23M35299-264#21563#21827
23M → 24M19173-154#21827#21981
24M → 40K12202-190#21981#22171
40K → 25.2M755-48#22171#22219
25.2M → Finish1037+96#22219#22123
TOTALS18082051-243
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing