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BOSTON MARATHON 2025

Emily Clancey

Bib: 18157•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:51
Rank: #13783
Start → 5K
23:51 | 7:41/mi
10K· 6.21 mi
47:41
Rank: #13712 (+71)
5K → 10K
23:50 | 7:40/mi
15K· 9.32 mi
1:12:20
Rank: #14305 (-593)
10K → 15K
24:39 | 7:56/mi
20K· 12.43 mi
1:38:01
Rank: #14977 (-672)
15K → 20K
25:41 | 8:16/mi
Half· 13.11 mi
1:43:32
Rank: #15080 (-103)
20K → Half
5:31 | 8:05/mi
25K· 15.53 mi
2:04:16
Rank: #15538 (-458)
Half → 25K
20:44 | 8:33/mi
30K· 18.64 mi
2:32:01
Rank: #15901 (-363)
25K → 30K
27:45 | 8:56/mi
20M
2:45:02
Rank: #16209 (-308)
30K → 20M
13:01 | 9:35/mi
21M
2:55:15
Rank: #16361 (-152)
20M → 21M
10:13 | 10:13/mi
35K· 21.75 mi
3:01:38
Rank: #16296 (+65)
21M → 35K
6:23 | 8:32/mi
23M
3:12:43
Rank: #16197 (+99)
35K → 23M
11:05 | 8:51/mi
24M
3:21:56
Rank: #16291 (-94)
23M → 24M
9:13 | 9:13/mi
40K· 24.85 mi
3:29:40
Rank: #16312 (-21)
24M → 40K
7:44 | 9:03/mi
25.2M
3:32:54
Rank: #16273 (+39)
40K → 25.2M
3:14 | 9:23/mi
Finish· 26.22 mi
3:41:18
Rank: #16204 (+69)
25.2M → Finish
8:24 | 8:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:32
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:57:46
Pace8:59 /mi
📊Positive Split: 13.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:2623:517:4123:51
7:41
-
10K
6.21 mi11:38:1647:417:4023:50
7:40
-0:01
15K
9.32 mi12:02:551:12:207:4624:39
7:56
+0:16
20K
12.43 mi12:28:361:38:017:5325:41
8:16
+0:20
Half
13.11 mi12:34:071:43:327:545:31
8:05
-0:11
25K
15.53 mi12:54:512:04:168:0020:44
8:33
+0:28
30K
18.64 mi13:22:362:32:018:0927:45
8:56
+0:23
20M
20.00 mi13:35:372:45:028:1513:01
9:35
+0:39
21M
21.00 mi13:45:502:55:158:2110:13
10:13
+0:38
35K
21.75 mi13:52:133:01:388:216:23
8:32
-1:41
23M
23.00 mi14:03:183:12:438:2311:05
8:51
+0:19
24M
24.00 mi14:12:313:21:568:259:13
9:13
+0:22
40K
24.85 mi14:20:153:29:408:267:44
9:03
-0:10
25.2M
25.20 mi14:23:293:32:548:273:14
9:23
+0:20
Finish
26.22 mi14:31:533:41:188:278:24
8:15
-1:08

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

7:40 /mi

Average Pace

8:27 /mi

Slowest Pace

10:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:17:51

35% of race

Time at Steady Pace

1:12:17

33% of race

Time at Slower Pace

1:11:10

32% of race

Average Pace: 8:26 /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 mi11:14:2623:517:4123:51
7:41
#13783
10K
6.21 mi11:38:1647:417:4023:50
7:40
#13712
15K
9.32 mi12:02:551:12:207:4624:39
7:56
#14305
20K
12.43 mi12:28:361:38:017:5325:41
8:16
#14977
Half
13.11 mi12:34:071:43:327:545:31
8:05
#15080
25K
15.53 mi12:54:512:04:168:0020:44
8:33
#15538
30K
18.64 mi13:22:362:32:018:0927:45
8:56
#15901
20M
20.00 mi13:35:372:45:028:1513:01
9:35
#16209
21M
21.00 mi13:45:502:55:158:2110:13
10:13
#16361
35K
21.75 mi13:52:133:01:388:216:23
8:32
#16296
23M
23.00 mi14:03:183:12:438:2311:05
8:51
#16197
24M
24.00 mi14:12:313:21:568:259:13
9:13
#16291
40K
24.85 mi14:20:153:29:408:267:44
9:03
#16312
25.2M
25.20 mi14:23:293:32:548:273:14
9:23
#16273
Finish
26.22 mi14:31:533:41:188:278:24
8:15
#16204
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi137833768376815536(Top 55%)4881(Top 40%)4881(Top 89%)
10K6.21 mi3.10 mi13712+713773-53773-513654(Top 48%)3757(Top 31%)3757(Top 69%)
15K9.32 mi3.11 mi14305-5934139-3664139-36615536(Top 55%)4881(Top 40%)4881(Top 89%)
20K12.43 mi3.11 mi14977-6724572-4334572-43316750(Top 59%)5634(Top 46%)5634(Top 103%)
Half13.11 mi0.68 mi15080-1034628-564628-5616573(Top 58%)5519(Top 45%)5519(Top 101%)
25K15.53 mi2.42 mi15538-4584911-2834911-28317493(Top 62%)6130(Top 50%)6130(Top 112%)
30K18.64 mi3.11 mi15901-3635167-2565167-25617322(Top 61%)6199(Top 51%)6199(Top 113%)
20M20.00 mi1.36 mi16209-3085388-2215388-22119523(Top 69%)7532(Top 62%)7532(Top 138%)
21M21.00 mi1.00 mi16361-1525503-1155503-11519086(Top 67%)7370(Top 60%)7370(Top 135%)
35K21.75 mi0.75 mi16296+655485+185485+1815695(Top 55%)5613(Top 46%)5613(Top 103%)
23M23.00 mi1.25 mi16197+995463+225463+2215424(Top 54%)5558(Top 45%)5558(Top 102%)
24M24.00 mi1.00 mi16291-945542-795542-7918431(Top 65%)7260(Top 59%)7260(Top 133%)
40K24.85 mi0.85 mi16312-215584-425584-4216585(Top 58%)6355(Top 52%)6355(Top 116%)
25.2M25.20 mi0.35 mi16273+395568+165568+1613965(Top 49%)5008(Top 41%)5008(Top 92%)
Finish26.22 mi1.02 mi16204+695542+265542+2614589(Top 51%)5257(Top 43%)5257(Top 96%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

15536

Females

4881

F18-39

4881

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

13654

Females

3757

F18-39

3757

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

15536

Females

4881

F18-39

4881

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

16750

Females

5634

F18-39

5634

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

16573

Females

5519

F18-39

5519

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17493

Females

6130

F18-39

6130

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

17322

Females

6199

F18-39

6199

30K→20M

18.6 - 20.0 mi

Top 69%
×5stories
+64ft-50ft

Overall

19523

Females

7532

F18-39

7532

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

19086

Females

7370

F18-39

7370

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

15695

Females

5613

F18-39

5613

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

15424

Females

5558

F18-39

5558

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

18431

Females

7260

F18-39

7260

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16585

Females

6355

F18-39

6355

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13965

Females

5008

F18-39

5008

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2stories
+22ft-21ft

Overall

14589

Females

5257

F18-39

5257

Passing Analysis

Category:
Athletes Passed
1294
Passed By
3715
Net Change
-2421
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13783
5K → 10K316245+71#13783#13712
10K → 15K61654-593#13712#14305
15K → 20K80752-672#14305#14977
20K → Half16119-103#14977#15080
Half → 25K71529-458#15080#15538
25K → 30K132495-363#15538#15901
30K → 20M50358-308#15901#16209
20M → 21M61213-152#16209#16361
21M → 35K8823+65#16361#16296
35K → 23M15354+99#16296#16197
23M → 24M49143-94#16197#16291
24M → 40K5980-21#16291#16312
40K → 25.2M5011+39#16312#16273
25.2M → Finish10839+69#16273#16204
TOTALS12943715-2421
📊

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