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BOSTON MARATHON 2025

Mari Sullivan

Bib: 14423•F

MT

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 24%
Gender (Female)
#0 / 12228
Top 8%
Division (F18-39)
#0 / 5469
Top 15%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:49
Rank: #10807
Start → 5K
22:49 | 7:21/mi
10K· 6.21 mi
45:42
Rank: #10814 (-7)
5K → 10K
22:53 | 7:22/mi
15K· 9.32 mi
1:08:16
Rank: #10428 (+386)
10K → 15K
22:34 | 7:16/mi
20K· 12.43 mi
1:30:47
Rank: #9922 (+506)
15K → 20K
22:31 | 7:15/mi
Half· 13.11 mi
1:35:37
Rank: #9818 (+104)
20K → Half
4:50 | 7:05/mi
25K· 15.53 mi
1:53:00
Rank: #9347 (+471)
Half → 25K
17:23 | 7:10/mi
30K· 18.64 mi
2:15:51
Rank: #8728 (+619)
25K → 30K
22:51 | 7:21/mi
20M
2:25:53
Rank: #8484 (+244)
30K → 20M
10:02 | 7:23/mi
21M
2:33:34
Rank: #8236 (+248)
20M → 21M
7:41 | 7:41/mi
35K· 21.75 mi
2:38:41
Rank: #8035 (+201)
21M → 35K
5:07 | 6:50/mi
23M
2:47:28
Rank: #7680 (+355)
35K → 23M
8:47 | 7:01/mi
24M
2:54:18
Rank: #7430 (+250)
23M → 24M
6:50 | 6:50/mi
40K· 24.85 mi
3:00:15
Rank: #7238 (+192)
24M → 40K
5:57 | 6:58/mi
25.2M
3:02:52
Rank: #7151 (+87)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
3:09:34
Rank: #6932 (+219)
25.2M → Finish
6:42 | 6:34/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:35:37
Pace7:18 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:33:57
Pace7:10 /mi
📊Negative Split: 1.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1122:497:2122:49
7:21
-
10K
6.21 mi11:16:0445:427:2122:53
7:22
+0:01
15K
9.32 mi11:38:381:08:167:1922:34
7:16
-0:06
20K
12.43 mi12:01:091:30:477:1822:31
7:15
-0:01
Half
13.11 mi12:05:591:35:377:184:50
7:05
-0:10
25K
15.53 mi12:23:221:53:007:1617:23
7:10
+0:05
30K
18.64 mi12:46:132:15:517:1722:51
7:21
+0:11
20M
20.00 mi12:56:152:25:537:1810:02
7:23
+0:02
21M
21.00 mi13:03:562:33:347:197:41
7:41
+0:18
35K
21.75 mi13:09:032:38:417:185:07
6:50
-0:51
23M
23.00 mi13:17:502:47:287:178:47
7:01
+0:11
24M
24.00 mi13:24:402:54:187:166:50
6:50
-0:11
40K
24.85 mi13:30:373:00:157:155:57
6:58
+0:08
25.2M
25.20 mi13:33:143:02:527:152:37
7:35
+0:37
Finish
26.22 mi13:39:563:09:347:146:42
6:34
-1:01

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

6:34 /mi

Average Pace

7:14 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

55:36

29% of race

Time at Steady Pace

2:13:58

71% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:14 /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 mi10:53:1122:497:2122:49
7:21
#10807
10K
6.21 mi11:16:0445:427:2122:53
7:22
#10814
15K
9.32 mi11:38:381:08:167:1922:34
7:16
#10428
20K
12.43 mi12:01:091:30:477:1822:31
7:15
#9922
Half
13.11 mi12:05:591:35:377:184:50
7:05
#9818
25K
15.53 mi12:23:221:53:007:1617:23
7:10
#9347
30K
18.64 mi12:46:132:15:517:1722:51
7:21
#8728
20M
20.00 mi12:56:152:25:537:1810:02
7:23
#8484
21M
21.00 mi13:03:562:33:347:197:41
7:41
#8236
35K
21.75 mi13:09:032:38:417:185:07
6:50
#8035
23M
23.00 mi13:17:502:47:287:178:47
7:01
#7680
24M
24.00 mi13:24:402:54:187:166:50
6:50
#7430
40K
24.85 mi13:30:373:00:157:155:57
6:58
#7238
25.2M
25.20 mi13:33:143:02:527:152:37
7:35
#7151
Finish
26.22 mi13:39:563:09:347:146:42
6:34
#6932
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10807218521859685(Top 34%)1737(Top 14%)1737(Top 32%)
10K6.21 mi3.10 mi10814-72210-252210-2510875(Top 38%)2235(Top 18%)2235(Top 41%)
15K9.32 mi3.11 mi10428+3862042+1682042+1689685(Top 34%)1737(Top 14%)1737(Top 32%)
20K12.43 mi3.11 mi9922+5061824+2181824+2188605(Top 30%)1349(Top 11%)1349(Top 25%)
Half13.11 mi0.68 mi9818+1041783+411783+418222(Top 29%)1160(Top 9%)1160(Top 21%)
25K15.53 mi2.42 mi9347+4711602+1811602+1817407(Top 26%)1003(Top 8%)1003(Top 18%)
30K18.64 mi3.11 mi8728+6191384+2181384+2186788(Top 24%)930(Top 8%)930(Top 17%)
20M20.00 mi1.36 mi8484+2441324+601324+606315(Top 22%)894(Top 7%)894(Top 16%)
21M21.00 mi1.00 mi8236+2481260+641260+645578(Top 20%)784(Top 6%)784(Top 14%)
35K21.75 mi0.75 mi8035+2011206+541206+544424(Top 16%)483(Top 4%)483(Top 9%)
23M23.00 mi1.25 mi7680+3551128+781128+783893(Top 14%)398(Top 3%)398(Top 7%)
24M24.00 mi1.00 mi7430+2501070+581070+583745(Top 13%)412(Top 3%)412(Top 8%)
40K24.85 mi0.85 mi7238+1921025+451025+453709(Top 13%)439(Top 4%)439(Top 8%)
25.2M25.20 mi0.35 mi7151+871012+131012+133910(Top 14%)544(Top 4%)544(Top 10%)
Finish26.22 mi1.02 mi6932+219965+47965+473242(Top 11%)375(Top 3%)375(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

9685

Females

1737

F18-39

1737

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10875

Females

2235

F18-39

2235

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

9685

Females

1737

F18-39

1737

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

8605

Females

1349

F18-39

1349

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

8222

Females

1160

F18-39

1160

Half→25K

13.1 - 15.5 mi

Top 26%
×4stories
+66ft-88ft

Overall

7407

Females

1003

F18-39

1003

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6788

Females

930

F18-39

930

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

6315

Females

894

F18-39

894

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5578

Females

784

F18-39

784

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4424

Females

483

F18-39

483

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3893

Females

398

F18-39

398

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3745

Females

412

F18-39

412

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3709

Females

439

F18-39

439

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3910

Females

544

F18-39

544

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3242

Females

375

F18-39

375

Passing Analysis

Category:
Athletes Passed
4201
Passed By
326
Net Change
+3875
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10807
5K → 10K251258-7#10807#10814
10K → 15K41226+386#10814#10428
15K → 20K51711+506#10428#9922
20K → Half1040+104#9922#9818
Half → 25K4765+471#9818#9347
25K → 30K63415+619#9347#8728
30K → 20M2462+244#8728#8484
20M → 21M2535+248#8484#8236
21M → 35K2021+201#8236#8035
35K → 23M3550+355#8035#7680
23M → 24M2500+250#7680#7430
24M → 40K1920+192#7430#7238
40K → 25.2M881+87#7238#7151
25.2M → Finish2212+219#7151#6932
TOTALS4201326+3875
📊

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