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BOSTON MARATHON 2023

Allie Marsh

Bib: 25233•F

NH

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:16
Rank: #24441
Start → 5K
32:16 | 10:23/mi
10K· 6.21 mi
1:00:43
Rank: #23099 (+1342)
5K → 10K
28:27 | 9:09/mi
15K· 9.32 mi
1:29:04
Rank: #22477 (+622)
10K → 15K
28:21 | 9:07/mi
20K· 12.43 mi
1:59:30
Rank: #22451 (+26)
15K → 20K
30:26 | 9:48/mi
Half· 13.11 mi
2:05:55
Rank: #22416 (+35)
20K → Half
6:25 | 9:24/mi
25K· 15.53 mi
2:29:17
Rank: #22233 (+183)
Half → 25K
23:22 | 9:38/mi
30K· 18.64 mi
3:00:48
Rank: #22062 (+171)
25K → 30K
31:31 | 10:09/mi
20M
3:15:17
Rank: #22066 (-4)
30K → 20M
14:29 | 10:39/mi
21M
3:25:58
Rank: #21948 (+118)
20M → 21M
10:41 | 10:41/mi
35K· 21.75 mi
3:33:31
Rank: #21940 (+8)
21M → 35K
7:33 | 10:06/mi
23M
3:47:01
Rank: #21944 (-4)
35K → 23M
13:30 | 10:47/mi
24M
3:57:25
Rank: #21929 (+15)
23M → 24M
10:24 | 10:24/mi
40K· 24.85 mi
4:06:38
Rank: #21925 (+4)
24M → 40K
9:13 | 10:47/mi
25.2M
4:10:25
Rank: #21901 (+24)
40K → 25.2M
3:47 | 10:58/mi
Finish· 26.22 mi
4:19:52
Rank: #21829 (+72)
25.2M → Finish
9:27 | 9:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:55
Pace9:36 /mi
2nd Half
Distance13.11 mi
Time2:13:57
Pace10:13 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:0532:1610:2332:16
10:23
-
10K
6.21 mi12:16:321:00:439:4628:27
9:09
-1:14
15K
9.32 mi12:44:531:29:049:3328:21
9:07
-0:02
20K
12.43 mi13:15:191:59:309:3730:26
9:48
+0:41
Half
13.11 mi13:21:442:05:559:366:25
9:24
-0:24
25K
15.53 mi13:45:062:29:179:3723:22
9:38
+0:14
30K
18.64 mi14:16:373:00:489:4231:31
10:09
+0:31
20M
20.00 mi14:31:063:15:179:4614:29
10:39
+0:30
21M
21.00 mi14:41:473:25:589:4810:41
10:41
+0:02
35K
21.75 mi14:49:203:33:319:497:33
10:06
-0:35
23M
23.00 mi15:02:503:47:019:5213:30
10:47
+0:41
24M
24.00 mi15:13:143:57:259:5410:24
10:24
-0:23
40K
24.85 mi15:22:274:06:389:559:13
10:47
+0:23
25.2M
25.20 mi15:26:144:10:259:563:47
10:58
+0:11
Finish
26.22 mi15:35:414:19:529:559:27
9:16
-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

9:07 /mi

Average Pace

9:55 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:28

49% of race

Time at Steady Pace

1:21:44

31% of race

Time at Slower Pace

51:40

20% of race

Average Pace: 9:55 /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 mi11:48:0532:1610:2332:16
10:23
#24441
10K
6.21 mi12:16:321:00:439:4628:27
9:09
#23099
15K
9.32 mi12:44:531:29:049:3328:21
9:07
#22477
20K
12.43 mi13:15:191:59:309:3730:26
9:48
#22451
Half
13.11 mi13:21:442:05:559:366:25
9:24
#22416
25K
15.53 mi13:45:062:29:179:3723:22
9:38
#22233
30K
18.64 mi14:16:373:00:489:4231:31
10:09
#22062
20M
20.00 mi14:31:063:15:179:4614:29
10:39
#22066
21M
21.00 mi14:41:473:25:589:4810:41
10:41
#21948
35K
21.75 mi14:49:203:33:319:497:33
10:06
#21940
23M
23.00 mi15:02:503:47:019:5213:30
10:47
#21944
24M
24.00 mi15:13:143:57:259:5410:24
10:24
#21929
40K
24.85 mi15:22:274:06:389:559:13
10:47
#21925
25.2M
25.20 mi15:26:144:10:259:563:47
10:58
#21901
Finish
26.22 mi15:35:414:19:529:559:27
9:16
#21829
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24441101211012121052(Top 79%)8266(Top 72%)8266(Top 169%)
10K6.21 mi3.10 mi23099+13429419+7029419+70221495(Top 81%)8552(Top 75%)8552(Top 175%)
15K9.32 mi3.11 mi22477+6229081+3389081+33821052(Top 79%)8266(Top 72%)8266(Top 169%)
20K12.43 mi3.11 mi22451+269059+229059+2222398(Top 84%)9022(Top 79%)9022(Top 185%)
Half13.11 mi0.68 mi22416+359038+219038+2121850(Top 82%)8711(Top 76%)8711(Top 178%)
25K15.53 mi2.42 mi22233+1838963+758963+7521264(Top 80%)8420(Top 74%)8420(Top 172%)
30K18.64 mi3.11 mi22062+1718872+918872+9121404(Top 80%)8580(Top 75%)8580(Top 176%)
20M20.00 mi1.36 mi22066-48883-118883-1122063(Top 83%)9013(Top 79%)9013(Top 185%)
21M21.00 mi1.00 mi21948+1188824+598824+5920127(Top 76%)7999(Top 70%)7999(Top 164%)
35K21.75 mi0.75 mi21940+88820+48820+421545(Top 81%)8797(Top 77%)8797(Top 180%)
23M23.00 mi1.25 mi21944-48834-148834-1421941(Top 82%)9039(Top 79%)9039(Top 185%)
24M24.00 mi1.00 mi21929+158837-38837-321813(Top 82%)9006(Top 79%)9006(Top 184%)
40K24.85 mi0.85 mi21925+48852-158852-1521904(Top 82%)9098(Top 80%)9098(Top 186%)
25.2M25.20 mi0.35 mi21901+248847+58847+520430(Top 77%)8287(Top 73%)8287(Top 170%)
Finish26.22 mi1.02 mi21829+728813+348813+3419283(Top 72%)7608(Top 67%)7608(Top 156%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

21052

Females

8266

F18-39

8266

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

21495

Females

8552

F18-39

8552

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

21052

Females

8266

F18-39

8266

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

22398

Females

9022

F18-39

9022

20K→Half

12.4 - 13.1 mi

Top 82%
×2stories
+19ft-37ft

Overall

21850

Females

8711

F18-39

8711

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

21264

Females

8420

F18-39

8420

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

21404

Females

8580

F18-39

8580

30K→20M

18.6 - 20.0 mi

Top 83%
×5stories
+64ft-50ft

Overall

22063

Females

9013

F18-39

9013

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

20127

Females

7999

F18-39

7999

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

21545

Females

8797

F18-39

8797

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

21941

Females

9039

F18-39

9039

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

21813

Females

9006

F18-39

9006

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21904

Females

9098

F18-39

9098

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

20430

Females

8287

F18-39

8287

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

19283

Females

7608

F18-39

7608

Passing Analysis

Category:
Athletes Passed
3070
Passed By
458
Net Change
+2612
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24441
5K → 10K13464+1342#24441#23099
10K → 15K6286+622#23099#22477
15K → 20K142116+26#22477#22451
20K → Half4510+35#22451#22416
Half → 25K21027+183#22416#22233
25K → 30K22453+171#22233#22062
30K → 20M6367-4#22062#22066
20M → 21M12911+118#22066#21948
21M → 35K3224+8#21948#21940
35K → 23M5660-4#21940#21944
23M → 24M4429+15#21944#21929
24M → 40K4036+4#21929#21925
40K → 25.2M317+24#21925#21901
25.2M → Finish808+72#21901#21829
TOTALS3070458+2612
📊

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