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BOSTON MARATHON 2025

Kelly Tiernan

Bib: 28943•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

Start
0:00:00
Race begins
5K· 3.11 mi
27:30
Rank: #21770
Start → 5K
27:30 | 8:51/mi
10K· 6.21 mi
54:17
Rank: #21092 (+678)
5K → 10K
26:47 | 8:37/mi
15K· 9.32 mi
1:21:30
Rank: #20973 (+119)
10K → 15K
27:13 | 8:46/mi
20K· 12.43 mi
1:49:20
Rank: #20924 (+49)
15K → 20K
27:50 | 8:58/mi
Half· 13.11 mi
1:55:33
Rank: #20991 (-67)
20K → Half
6:13 | 9:07/mi
25K· 15.53 mi
2:17:48
Rank: #20950 (+41)
Half → 25K
22:15 | 9:11/mi
30K· 18.64 mi
2:47:37
Rank: #20832 (+118)
25K → 30K
29:49 | 9:36/mi
20M
3:00:43
Rank: #20735 (+97)
30K → 20M
13:06 | 9:38/mi
21M
3:11:04
Rank: #20634 (+101)
20M → 21M
10:21 | 10:21/mi
35K· 21.75 mi
3:18:15
Rank: #20640 (-6)
21M → 35K
7:11 | 9:36/mi
23M
3:30:19
Rank: #20566 (+74)
35K → 23M
12:04 | 9:38/mi
24M
3:39:57
Rank: #20570 (-4)
23M → 24M
9:38 | 9:38/mi
40K· 24.85 mi
3:48:21
Rank: #20570
24M → 40K
8:24 | 9:49/mi
25.2M
3:52:03
Rank: #20572 (-2)
40K → 25.2M
3:42 | 10:44/mi
Finish· 26.22 mi
4:01:15
Rank: #20536 (+36)
25.2M → Finish
9:12 | 9:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:33
Pace8:49 /mi
2nd Half
Distance13.11 mi
Time2:05:42
Pace9:35 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:5327:308:5127:30
8:51
-
10K
6.21 mi12:13:4054:178:4426:47
8:37
-0:14
15K
9.32 mi12:40:531:21:308:4527:13
8:46
+0:09
20K
12.43 mi13:08:431:49:208:4827:50
8:58
+0:12
Half
13.11 mi13:14:561:55:338:496:13
9:07
+0:09
25K
15.53 mi13:37:112:17:488:5222:15
9:11
+0:04
30K
18.64 mi14:07:002:47:379:0029:49
9:36
+0:25
20M
20.00 mi14:20:063:00:439:0213:06
9:38
+0:02
21M
21.00 mi14:30:273:11:049:0610:21
10:21
+0:43
35K
21.75 mi14:37:383:18:159:077:11
9:36
-0:45
23M
23.00 mi14:49:423:30:199:0912:04
9:38
+0:02
24M
24.00 mi14:59:203:39:579:109:38
9:38
0:00
40K
24.85 mi15:07:443:48:219:118:24
9:49
+0:11
25.2M
25.20 mi15:11:263:52:039:133:42
10:44
+0:55
Finish
26.22 mi15:20:384:01:159:129:12
9:02
-1:42

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

8:37 /mi

Average Pace

9:12 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:00

61% of race

Time at Steady Pace

1:20:12

33% of race

Time at Slower Pace

14:03

6% of race

Average Pace: 9:12 /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 mi11:46:5327:308:5127:30
8:51
#21770
10K
6.21 mi12:13:4054:178:4426:47
8:37
#21092
15K
9.32 mi12:40:531:21:308:4527:13
8:46
#20973
20K
12.43 mi13:08:431:49:208:4827:50
8:58
#20924
Half
13.11 mi13:14:561:55:338:496:13
9:07
#20991
25K
15.53 mi13:37:112:17:488:5222:15
9:11
#20950
30K
18.64 mi14:07:002:47:379:0029:49
9:36
#20832
20M
20.00 mi14:20:063:00:439:0213:06
9:38
#20735
21M
21.00 mi14:30:273:11:049:0610:21
10:21
#20634
35K
21.75 mi14:37:383:18:159:077:11
9:36
#20640
23M
23.00 mi14:49:423:30:199:0912:04
9:38
#20566
24M
24.00 mi14:59:203:39:579:109:38
9:38
#20570
40K
24.85 mi15:07:443:48:219:118:24
9:49
#20570
25.2M
25.20 mi15:11:263:52:039:133:42
10:44
#20572
Finish
26.22 mi15:20:384:01:159:129:12
9:02
#20536
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi217708498849820827(Top 73%)7904(Top 65%)7904(Top 145%)
10K6.21 mi3.10 mi21092+6788102+3968102+39620463(Top 72%)7724(Top 63%)7724(Top 141%)
15K9.32 mi3.11 mi20973+1198027+758027+7520827(Top 73%)7904(Top 65%)7904(Top 145%)
20K12.43 mi3.11 mi20924+497989+387989+3820773(Top 73%)7932(Top 65%)7932(Top 145%)
Half13.11 mi0.68 mi20991-678023-348023-3422266(Top 78%)8748(Top 72%)8748(Top 160%)
25K15.53 mi2.42 mi20950+418011+128011+1220685(Top 73%)7919(Top 65%)7919(Top 145%)
30K18.64 mi3.11 mi20832+1188005+68005+620345(Top 72%)7848(Top 64%)7848(Top 143%)
20M20.00 mi1.36 mi20735+977963+427963+4219749(Top 70%)7657(Top 63%)7657(Top 140%)
21M21.00 mi1.00 mi20634+1017925+387925+3819562(Top 69%)7663(Top 63%)7663(Top 140%)
35K21.75 mi0.75 mi20640-67942-177942-1720701(Top 73%)8347(Top 68%)8347(Top 153%)
23M23.00 mi1.25 mi20566+747925+177925+1719242(Top 68%)7642(Top 62%)7642(Top 140%)
24M24.00 mi1.00 mi20570-47943-187943-1820139(Top 71%)8153(Top 67%)8153(Top 149%)
40K24.85 mi0.85 mi205707961-187961-1819909(Top 70%)8105(Top 66%)8105(Top 148%)
25.2M25.20 mi0.35 mi20572-27974-137974-1319857(Top 70%)8085(Top 66%)8085(Top 148%)
Finish26.22 mi1.02 mi20536+367959+157959+1519215(Top 68%)7731(Top 63%)7731(Top 141%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

20827

Females

7904

F18-39

7904

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

20463

Females

7724

F18-39

7724

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

20827

Females

7904

F18-39

7904

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

20773

Females

7932

F18-39

7932

20K→Half

12.4 - 13.1 mi

Top 78%
×2stories
+19ft-37ft

Overall

22266

Females

8748

F18-39

8748

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

20685

Females

7919

F18-39

7919

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

20345

Females

7848

F18-39

7848

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

19749

Females

7657

F18-39

7657

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

19562

Females

7663

F18-39

7663

21M→35K

21.0 - 21.8 mi

Top 73%
×7stories
+17ft-86ft

Overall

20701

Females

8347

F18-39

8347

35K→23M

21.8 - 23.0 mi

Top 68%
×5stories
+23ft-63ft

Overall

19242

Females

7642

F18-39

7642

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

20139

Females

8153

F18-39

8153

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19909

Females

8105

F18-39

8105

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19857

Females

8085

F18-39

8085

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

19215

Females

7731

F18-39

7731

Passing Analysis

Category:
Athletes Passed
2299
Passed By
1065
Net Change
+1234
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21770
5K → 10K74062+678#21770#21092
10K → 15K251132+119#21092#20973
15K → 20K210161+49#20973#20924
20K → Half1683-67#20924#20991
Half → 25K159118+41#20991#20950
25K → 30K273155+118#20950#20832
30K → 20M14447+97#20832#20735
20M → 21M14847+101#20735#20634
21M → 35K4450-6#20634#20640
35K → 23M12248+74#20640#20566
23M → 24M5256-4#20566#20570
24M → 40K56560#20570#20570
40K → 25.2M2830-2#20570#20572
25.2M → Finish5620+36#20572#20536
TOTALS22991065+1234
📊

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