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BOSTON MARATHON 2025

Shannan Barrett

Bib: 12936•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 40%
Gender (Female)
#0 / 12228
Top 24%
Division (F18-39)
#0 / 5469
Top 41%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:02
Rank: #8584
Start → 5K
22:02 | 7:06/mi
10K· 6.21 mi
44:29
Rank: #9118 (-534)
5K → 10K
22:27 | 7:14/mi
15K· 9.32 mi
1:06:59
Rank: #9231 (-113)
10K → 15K
22:30 | 7:15/mi
20K· 12.43 mi
1:30:32
Rank: #9746 (-515)
15K → 20K
23:33 | 7:35/mi
Half· 13.11 mi
1:35:58
Rank: #10053 (-307)
20K → Half
5:26 | 7:58/mi
25K· 15.53 mi
1:57:54
Rank: #12081 (-2028)
Half → 25K
21:56 | 9:03/mi
30K· 18.64 mi
2:24:57
Rank: #12863 (-782)
25K → 30K
27:03 | 8:42/mi
20M
2:36:03
Rank: #12747 (+116)
30K → 20M
11:06 | 8:10/mi
21M
2:44:42
Rank: #12639 (+108)
20M → 21M
8:39 | 8:39/mi
35K· 21.75 mi
2:50:31
Rank: #12536 (+103)
21M → 35K
5:49 | 7:46/mi
23M
3:00:30
Rank: #12336 (+200)
35K → 23M
9:59 | 7:58/mi
24M
3:08:13
Rank: #12186 (+150)
23M → 24M
7:43 | 7:43/mi
40K· 24.85 mi
3:14:35
Rank: #11933 (+253)
24M → 40K
6:22 | 7:27/mi
25.2M
3:17:18
Rank: #11799 (+134)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
3:24:22
Rank: #11467 (+332)
25.2M → Finish
7:04 | 6:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:58
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:48:24
Pace8:16 /mi
📊Positive Split: 13.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4122:027:0622:02
7:06
-
10K
6.21 mi11:13:0844:297:1022:27
7:14
+0:08
15K
9.32 mi11:35:381:06:597:1122:30
7:15
+0:01
20K
12.43 mi11:59:111:30:327:1723:33
7:35
+0:20
Half
13.11 mi12:04:371:35:587:195:26
7:58
+0:23
25K
15.53 mi12:26:331:57:547:3521:56
9:03
+1:05
30K
18.64 mi12:53:362:24:577:4727:03
8:42
-0:21
20M
20.00 mi13:04:422:36:037:4811:06
8:10
-0:32
21M
21.00 mi13:13:212:44:427:518:39
8:39
+0:29
35K
21.75 mi13:19:102:50:317:505:49
7:46
-0:53
23M
23.00 mi13:29:093:00:307:519:59
7:58
+0:12
24M
24.00 mi13:36:523:08:137:517:43
7:43
-0:15
40K
24.85 mi13:43:143:14:357:506:22
7:27
-0:16
25.2M
25.20 mi13:45:573:17:187:502:43
7:53
+0:26
Finish
26.22 mi13:53:013:24:227:487:04
6:56
-0:57

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

6:56 /mi

Average Pace

7:48 /mi

Slowest Pace

9:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:20:25

39% of race

Time at Steady Pace

55:13

27% of race

Time at Slower Pace

1:08:44

34% of race

Average Pace: 7:48 /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 mi10:50:4122:027:0622:02
7:06
#8584
10K
6.21 mi11:13:0844:297:1022:27
7:14
#9118
15K
9.32 mi11:35:381:06:597:1122:30
7:15
#9231
20K
12.43 mi11:59:111:30:327:1723:33
7:35
#9746
Half
13.11 mi12:04:371:35:587:195:26
7:58
#10053
25K
15.53 mi12:26:331:57:547:3521:56
9:03
#12081
30K
18.64 mi12:53:362:24:577:4727:03
8:42
#12863
20M
20.00 mi13:04:422:36:037:4811:06
8:10
#12747
21M
21.00 mi13:13:212:44:427:518:39
8:39
#12639
35K
21.75 mi13:19:102:50:317:505:49
7:46
#12536
23M
23.00 mi13:29:093:00:307:519:59
7:58
#12336
24M
24.00 mi13:36:523:08:137:517:43
7:43
#12186
40K
24.85 mi13:43:143:14:357:506:22
7:27
#11933
25.2M
25.20 mi13:45:573:17:187:502:43
7:53
#11799
Finish
26.22 mi13:53:013:24:227:487:04
6:56
#11467
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8584120112019504(Top 33%)1656(Top 14%)1656(Top 30%)
10K6.21 mi3.10 mi9118-5341425-2241425-2249724(Top 34%)1698(Top 14%)1698(Top 31%)
15K9.32 mi3.11 mi9231-1131495-701495-709504(Top 33%)1656(Top 14%)1656(Top 30%)
20K12.43 mi3.11 mi9746-5151755-2601755-26011446(Top 40%)2711(Top 22%)2711(Top 50%)
Half13.11 mi0.68 mi10053-3071899-1441899-14415607(Top 55%)4927(Top 40%)4927(Top 90%)
25K15.53 mi2.42 mi12081-20282959-10602959-106020108(Top 71%)7589(Top 62%)7589(Top 139%)
30K18.64 mi3.11 mi12863-7823462-5033462-50316036(Top 56%)5479(Top 45%)5479(Top 100%)
20M20.00 mi1.36 mi12747+1163444+183444+1811611(Top 41%)3233(Top 26%)3233(Top 59%)
21M21.00 mi1.00 mi12639+1083410+343410+3411392(Top 40%)3293(Top 27%)3293(Top 60%)
35K21.75 mi0.75 mi12536+1033381+293381+2910668(Top 38%)2939(Top 24%)2939(Top 54%)
23M23.00 mi1.25 mi12336+2003315+663315+669879(Top 35%)2683(Top 22%)2683(Top 49%)
24M24.00 mi1.00 mi12186+1503269+463269+469258(Top 33%)2456(Top 20%)2456(Top 45%)
40K24.85 mi0.85 mi11933+2533179+903179+906542(Top 23%)1370(Top 11%)1370(Top 25%)
25.2M25.20 mi0.35 mi11799+1343120+593120+595427(Top 19%)1057(Top 9%)1057(Top 19%)
Finish26.22 mi1.02 mi11467+3322990+1302990+1305362(Top 19%)1008(Top 8%)1008(Top 18%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

9504

Females

1656

F18-39

1656

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

9724

Females

1698

F18-39

1698

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

9504

Females

1656

F18-39

1656

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

11446

Females

2711

F18-39

2711

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

15607

Females

4927

F18-39

4927

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

20108

Females

7589

F18-39

7589

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

16036

Females

5479

F18-39

5479

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

11611

Females

3233

F18-39

3233

20M→21M

20.0 - 21.0 mi

Top 40%
×8stories
+106ft-24ft

Overall

11392

Females

3293

F18-39

3293

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

10668

Females

2939

F18-39

2939

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9879

Females

2683

F18-39

2683

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

9258

Females

2456

F18-39

2456

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6542

Females

1370

F18-39

1370

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5427

Females

1057

F18-39

1057

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5362

Females

1008

F18-39

1008

Passing Analysis

Category:
Athletes Passed
1909
Passed By
4789
Net Change
-2883
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8584
5K → 10K57591-534#8584#9118
10K → 15K119232-113#9118#9231
15K → 20K76591-515#9231#9746
20K → Half0305-307#9746#10053
Half → 25K82035-2028#10053#12081
25K → 30K88870-782#12081#12863
30K → 20M17458+116#12863#12747
20M → 21M16355+108#12747#12639
21M → 35K11916+103#12639#12536
35K → 23M21515+200#12536#12336
23M → 24M16717+150#12336#12186
24M → 40K2552+253#12186#11933
40K → 25.2M1340+134#11933#11799
25.2M → Finish3342+332#11799#11467
TOTALS19094789-2883
📊

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