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BOSTON MARATHON 2025

Chloe Colligan

Bib: 3927•F

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 9%
Gender (Female)
#0 / 12228
Top 1%
Division (F18-39)
#0 / 5469
Top 2%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:51
Rank: #3060
Start → 5K
19:51 | 6:23/mi
10K· 6.21 mi
39:55
Rank: #3235 (-175)
5K → 10K
20:04 | 6:28/mi
15K· 9.32 mi
1:00:06
Rank: #3315 (-80)
10K → 15K
20:11 | 6:30/mi
20K· 12.43 mi
1:21:19
Rank: #3789 (-474)
15K → 20K
21:13 | 6:50/mi
Half· 13.11 mi
1:25:41
Rank: #3749 (+40)
20K → Half
4:22 | 6:24/mi
25K· 15.53 mi
1:41:20
Rank: #3535 (+214)
Half → 25K
15:39 | 6:27/mi
30K· 18.64 mi
2:01:35
Rank: #3171 (+364)
25K → 30K
20:15 | 6:31/mi
20M
2:10:31
Rank: #3023 (+148)
30K → 20M
8:56 | 6:34/mi
21M
2:17:24
Rank: #2917 (+106)
20M → 21M
6:53 | 6:53/mi
35K· 21.75 mi
2:22:11
Rank: #2848 (+69)
21M → 35K
4:47 | 6:24/mi
23M
2:30:31
Rank: #2770 (+78)
35K → 23M
8:20 | 6:39/mi
24M
2:36:57
Rank: #2670 (+100)
23M → 24M
6:26 | 6:26/mi
40K· 24.85 mi
2:42:38
Rank: #2625 (+45)
24M → 40K
5:41 | 6:39/mi
25.2M
2:45:09
Rank: #2608 (+17)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:51:44
Rank: #2584 (+24)
25.2M → Finish
6:35 | 6:28/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:25:41
Pace6:32 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:26:03
Pace6:34 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:1719:516:2319:51
6:23
-
10K
6.21 mi10:42:2139:556:2520:04
6:28
+0:05
15K
9.32 mi11:02:321:00:066:2720:11
6:30
+0:02
20K
12.43 mi11:23:451:21:196:3321:13
6:50
+0:20
Half
13.11 mi11:28:071:25:416:324:22
6:24
-0:26
25K
15.53 mi11:43:461:41:206:3115:39
6:27
+0:03
30K
18.64 mi12:04:012:01:356:3120:15
6:31
+0:04
20M
20.00 mi12:12:572:10:316:328:56
6:34
+0:03
21M
21.00 mi12:19:502:17:246:336:53
6:53
+0:19
35K
21.75 mi12:24:372:22:116:324:47
6:24
-0:29
23M
23.00 mi12:32:572:30:316:338:20
6:39
+0:15
24M
24.00 mi12:39:232:36:576:326:26
6:26
-0:13
40K
24.85 mi12:45:042:42:386:335:41
6:39
+0:13
25.2M
25.20 mi12:47:352:45:096:332:31
7:18
+0:39
Finish
26.22 mi12:54:102:51:446:336:35
6:28
-0:50

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

6:23 /mi

Average Pace

6:33 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:13

99% of race

Time at Steady Pace

2:31

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:33 /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 mi10:22:1719:516:2319:51
6:23
#3060
10K
6.21 mi10:42:2139:556:2520:04
6:28
#3235
15K
9.32 mi11:02:321:00:066:2720:11
6:30
#3315
20K
12.43 mi11:23:451:21:196:3321:13
6:50
#3789
Half
13.11 mi11:28:071:25:416:324:22
6:24
#3749
25K
15.53 mi11:43:461:41:206:3115:39
6:27
#3535
30K
18.64 mi12:04:012:01:356:3120:15
6:31
#3171
20M
20.00 mi12:12:572:10:316:328:56
6:34
#3023
21M
21.00 mi12:19:502:17:246:336:53
6:53
#2917
35K
21.75 mi12:24:372:22:116:324:47
6:24
#2848
23M
23.00 mi12:32:572:30:316:338:20
6:39
#2770
24M
24.00 mi12:39:232:36:576:326:26
6:26
#2670
40K
24.85 mi12:45:042:42:386:335:41
6:39
#2625
25.2M
25.20 mi12:47:352:45:096:332:31
7:18
#2608
Finish
26.22 mi12:54:102:51:446:336:35
6:28
#2584
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi30601471473560(Top 13%)187(Top 2%)187(Top 3%)
10K6.21 mi3.10 mi3235-175154-7154-73452(Top 12%)170(Top 1%)170(Top 3%)
15K9.32 mi3.11 mi3315-80160-6160-63560(Top 13%)187(Top 2%)187(Top 3%)
20K12.43 mi3.11 mi3789-474207-47207-475615(Top 20%)479(Top 4%)479(Top 9%)
Half13.11 mi0.68 mi3749+40202+5202+53114(Top 11%)138(Top 1%)138(Top 3%)
25K15.53 mi2.42 mi3535+214182+20182+202663(Top 9%)124(Top 1%)124(Top 2%)
30K18.64 mi3.11 mi3171+364151+31151+312073(Top 7%)96(Top 0.8%)96(Top 2%)
20M20.00 mi1.36 mi3023+148145+6145+61951(Top 7%)99(Top 0.8%)99(Top 2%)
21M21.00 mi1.00 mi2917+106139+6139+61845(Top 6%)98(Top 0.8%)98(Top 2%)
35K21.75 mi0.75 mi2848+69137+2137+22042(Top 7%)121(Top 1.0%)121(Top 2%)
23M23.00 mi1.25 mi2770+78134+3134+32084(Top 7%)127(Top 1%)127(Top 2%)
24M24.00 mi1.00 mi2670+100130+4130+41820(Top 6%)119(Top 1.0%)119(Top 2%)
40K24.85 mi0.85 mi2625+451301302187(Top 8%)169(Top 1%)169(Top 3%)
25.2M25.20 mi0.35 mi2608+17131-1131-12601(Top 9%)263(Top 2%)263(Top 5%)
Finish26.22 mi1.02 mi2584+24130+1130+12652(Top 9%)242(Top 2%)242(Top 4%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3560

Females

187

F18-39

187

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3452

Females

170

F18-39

170

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3560

Females

187

F18-39

187

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5615

Females

479

F18-39

479

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3114

Females

138

F18-39

138

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2663

Females

124

F18-39

124

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

2073

Females

96

F18-39

96

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1951

Females

99

F18-39

99

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1845

Females

98

F18-39

98

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

2042

Females

121

F18-39

121

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

2084

Females

127

F18-39

127

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1820

Females

119

F18-39

119

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2187

Females

169

F18-39

169

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2601

Females

263

F18-39

263

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2652

Females

242

F18-39

242

Passing Analysis

Category:
Athletes Passed
1431
Passed By
955
Net Change
+476
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3060
5K → 10K70245-175#3060#3235
10K → 15K63143-80#3235#3315
15K → 20K16490-474#3315#3789
20K → Half422+40#3789#3749
Half → 25K2173+214#3749#3535
25K → 30K3673+364#3535#3171
30K → 20M1524+148#3171#3023
20M → 21M1148+106#3023#2917
21M → 35K712+69#2917#2848
35K → 23M8810+78#2848#2770
23M → 24M1044+100#2770#2670
24M → 40K5510+45#2670#2625
40K → 25.2M2710+17#2625#2608
25.2M → Finish4521+24#2608#2584
TOTALS1431955+476
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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