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BOSTON MARATHON 2025

Caroline Mcclelland

Bib: 1281•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 5%
Gender (Female)
#0 / 12228
Top 0.6%
Division (F18-39)
#0 / 5469
Top 1%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:39
Rank: #407
Start → 5K
5:41/mi
17:39 split
10K· 6.21 mi
35:15
Rank: #393 (+14)
5K → 10K
5:40/mi
17:36 split
15K· 9.32 mi
53:22
Rank: #460 (-67)
10K → 15K
5:50/mi
18:07 split
20K· 12.43 mi
1:12:10
Rank: #536 (-76)
15K → 20K
6:03/mi
18:48 split
Half· 13.11 mi
1:16:18
Rank: #564 (-28)
20K → Half
6:03/mi
4:08 split
25K· 15.53 mi
1:31:35
Rank: #686 (-122)
Half → 25K
6:18/mi
15:17 split
30K· 18.64 mi
1:51:51
Rank: #831 (-145)
25K → 30K
6:31/mi
20:16 split
20M
2:01:06
Rank: #901 (-70)
30K → 20M
6:48/mi
9:15 split
21M
2:08:22
Rank: #983 (-82)
20M → 21M
7:16/mi
7:16 split
35K· 21.75 mi
2:13:25
Rank: #1029 (-46)
21M → 35K
6:45/mi
5:03 split
23M
2:22:27
Rank: #1151 (-122)
35K → 23M
7:13/mi
9:02 split
24M
2:29:35
Rank: #1261 (-110)
23M → 24M
7:08/mi
7:08 split
40K· 24.85 mi
2:35:49
Rank: #1345 (-84)
24M → 40K
7:17/mi
6:14 split
25.2M
2:38:30
Rank: #1378 (-33)
40K → 25.2M
7:47/mi
2:41 split
Finish· 26.22 mi
2:45:26
Rank: #1444 (-66)
25.2M → Finish
6:48/mi
6:56 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:16:18
Pace5:49 /mi
2nd Half
Distance13.11 mi
Time1:29:08
Pace6:48 /mi
📊Positive Split: 16.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:0917:395:4117:39
5:41
-
10K
6.21 mi10:35:4535:155:4017:36
5:40
-0:01
15K
9.32 mi10:53:5253:225:4418:07
5:50
+0:10
20K
12.43 mi11:12:401:12:105:4818:48
6:03
+0:13
Half
13.11 mi11:16:481:16:185:494:08
6:03
0:00
25K
15.53 mi11:32:051:31:355:5415:17
6:18
+0:15
30K
18.64 mi11:52:211:51:516:0020:16
6:31
+0:13
20M
20.00 mi12:01:362:01:066:039:15
6:48
+0:17
21M
21.00 mi12:08:522:08:226:077:16
7:16
+0:28
35K
21.75 mi12:13:552:13:256:085:03
6:45
-0:31
23M
23.00 mi12:22:572:22:276:129:02
7:13
+0:28
24M
24.00 mi12:30:052:29:356:147:08
7:08
-0:05
40K
24.85 mi12:36:192:35:496:166:14
7:17
+0:09
25.2M
25.20 mi12:39:002:38:306:172:41
7:47
+0:30
Finish
26.22 mi12:45:562:45:266:196:56
6:48
-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

5:40 /mi

Average Pace

6:19 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:35

55% of race

Time at Steady Pace

41:30

25% of race

Time at Slower Pace

32:21

20% of race

Average Pace: 6:19 /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 mi10:18:0917:395:4117:39
5:41
#407
10K
6.21 mi10:35:4535:155:4017:36
5:40
#393
15K
9.32 mi10:53:5253:225:4418:07
5:50
#460
20K
12.43 mi11:12:401:12:105:4818:48
6:03
#536
Half
13.11 mi11:16:481:16:185:494:08
6:03
#564
25K
15.53 mi11:32:051:31:355:5415:17
6:18
#686
30K
18.64 mi11:52:211:51:516:0020:16
6:31
#831
20M
20.00 mi12:01:362:01:066:039:15
6:48
#901
21M
21.00 mi12:08:522:08:226:077:16
7:16
#983
35K
21.75 mi12:13:552:13:256:085:03
6:45
#1029
23M
23.00 mi12:22:572:22:276:129:02
7:13
#1151
24M
24.00 mi12:30:052:29:356:147:08
7:08
#1261
40K
24.85 mi12:36:192:35:496:166:14
7:17
#1345
25.2M
25.20 mi12:39:002:38:306:172:41
7:47
#1378
Finish
26.22 mi12:45:562:45:266:196:56
6:48
#1444
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi4073131599(Top 2%)38(Top 0.3%)38(Top 0.7%)
10K6.21 mi3.10 mi393+1430+130+1392(Top 1%)29(Top 0.2%)29(Top 0.5%)
15K9.32 mi3.11 mi460-6733-333-3599(Top 2%)38(Top 0.3%)38(Top 0.7%)
20K12.43 mi3.11 mi536-7635-235-21012(Top 4%)54(Top 0.4%)54(Top 1.0%)
Half13.11 mi0.68 mi564-2839-439-41424(Top 5%)65(Top 0.5%)65(Top 1%)
25K15.53 mi2.42 mi686-12244-544-51889(Top 7%)86(Top 0.7%)86(Top 2%)
30K18.64 mi3.11 mi831-14547-347-32096(Top 7%)97(Top 0.8%)97(Top 2%)
20M20.00 mi1.36 mi901-7049-249-23001(Top 11%)192(Top 2%)192(Top 4%)
21M21.00 mi1.00 mi983-8254-554-53492(Top 12%)278(Top 2%)278(Top 5%)
35K21.75 mi0.75 mi1029-4656-256-23857(Top 14%)367(Top 3%)367(Top 7%)
23M23.00 mi1.25 mi1151-12261-561-54985(Top 18%)662(Top 5%)662(Top 12%)
24M24.00 mi1.00 mi1261-11068-768-75428(Top 19%)853(Top 7%)853(Top 16%)
40K24.85 mi0.85 mi1345-8471-371-35616(Top 20%)967(Top 8%)967(Top 18%)
25.2M25.20 mi0.35 mi1378-3372-172-14822(Top 17%)789(Top 6%)789(Top 14%)
Finish26.22 mi1.02 mi1444-6675-375-34537(Top 16%)692(Top 6%)692(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21story building
+97ft-345ft

Overall

599

Females

38

F18-39

38

5K→10K

3.1 - 6.2 mi

Top 1%
×5story building
+79ft-138ft

Overall

392

Females

29

F18-39

29

10K→15K

6.2 - 9.3 mi

Top 2%
×3story building
+67ft-78ft

Overall

599

Females

38

F18-39

38

15K→20K

9.3 - 12.4 mi

Top 4%
×5story building
+106ft-86ft

Overall

1012

Females

54

F18-39

54

20K→Half

12.4 - 13.1 mi

Top 5%
×2story building
+19ft-37ft

Overall

1424

Females

65

F18-39

65

Half→25K

13.1 - 15.5 mi

Top 7%
×4story building
+66ft-88ft

Overall

1889

Females

86

F18-39

86

25K→30K

15.5 - 18.6 mi

Top 7%
×9story building
+181ft-148ft

Overall

2096

Females

97

F18-39

97

30K→20M

18.6 - 20.0 mi

Top 11%
×5story building
+64ft-50ft

Overall

3001

Females

192

F18-39

192

20M→21M

20.0 - 21.0 mi

Top 12%
×8story building
+106ft-24ft

Overall

3492

Females

278

F18-39

278

21M→35K

21.0 - 21.8 mi

Top 14%
×7story building
+17ft-86ft

Overall

3857

Females

367

F18-39

367

35K→23M

21.8 - 23.0 mi

Top 18%
×5story building
+23ft-63ft

Overall

4985

Females

662

F18-39

662

23M→24M

23.0 - 24.0 mi

Top 19%
×6story building
+12ft-82ft

Overall

5428

Females

853

F18-39

853

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5616

Females

967

F18-39

967

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4822

Females

789

F18-39

789

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2story building
+22ft-21ft

Overall

4537

Females

692

F18-39

692

Passing Analysis

Category:
Athletes Passed
99
Passed By
1136
Net Change
-1037
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#407
5K → 10K3016+14#407#393
10K → 15K774-67#393#460
15K → 20K278-76#460#536
20K → Half129-28#536#564
Half → 25K6128-122#564#686
25K → 30K6151-145#686#831
30K → 20M676-70#831#901
20M → 21M789-82#901#983
21M → 35K551-46#983#1029
35K → 23M15137-122#1029#1151
23M → 24M3113-110#1151#1261
24M → 40K286-84#1261#1345
40K → 25.2M336-33#1345#1378
25.2M → Finish672-66#1378#1444
TOTALS991136-1037
📊

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