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BOSTON MARATHON 2023

Alyssa Shepard

Bib: 29254•F

MA

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
33:01
Rank: #25011
Start → 5K
33:01 | 10:38/mi
10K· 6.21 mi
1:05:11
Rank: #24703 (+308)
5K → 10K
32:10 | 10:21/mi
15K· 9.32 mi
1:36:57
Rank: #24440 (+263)
10K → 15K
31:46 | 10:13/mi
20K· 12.43 mi
2:09:01
Rank: #24185 (+255)
15K → 20K
32:04 | 10:19/mi
Half· 13.11 mi
2:16:00
Rank: #24152 (+33)
20K → Half
6:59 | 10:14/mi
25K· 15.53 mi
2:41:39
Rank: #23982 (+170)
Half → 25K
25:39 | 10:35/mi
30K· 18.64 mi
3:14:57
Rank: #23717 (+265)
25K → 30K
33:18 | 10:43/mi
20M
3:29:34
Rank: #23599 (+118)
30K → 20M
14:37 | 10:45/mi
21M
3:40:34
Rank: #23491 (+108)
20M → 21M
11:00 | 11:00/mi
35K· 21.75 mi
3:48:23
Rank: #23456 (+35)
21M → 35K
7:49 | 10:27/mi
23M
4:01:22
Rank: #23328 (+128)
35K → 23M
12:59 | 10:22/mi
24M
4:11:17
Rank: #23235 (+93)
23M → 24M
9:55 | 9:55/mi
40K· 24.85 mi
4:19:52
Rank: #23111 (+124)
24M → 40K
8:35 | 10:02/mi
25.2M
4:23:27
Rank: #23058 (+53)
40K → 25.2M
3:35 | 10:23/mi
Finish· 26.22 mi
4:32:56
Rank: #22955 (+103)
25.2M → Finish
9:29 | 9:18/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:16:00
Pace10:22 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:16:56
Pace10:27 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2533:0110:3833:01
10:38
-
10K
6.21 mi12:23:351:05:1110:2932:10
10:21
-0:17
15K
9.32 mi12:55:211:36:5710:2431:46
10:13
-0:08
20K
12.43 mi13:27:252:09:0110:2332:04
10:19
+0:06
Half
13.11 mi13:34:242:16:0010:226:59
10:14
-0:05
25K
15.53 mi14:00:032:41:3910:2425:39
10:35
+0:21
30K
18.64 mi14:33:213:14:5710:2733:18
10:43
+0:08
20M
20.00 mi14:47:583:29:3410:2914:37
10:45
+0:02
21M
21.00 mi14:58:583:40:3410:3011:00
11:00
+0:15
35K
21.75 mi15:06:473:48:2310:307:49
10:27
-0:33
23M
23.00 mi15:19:464:01:2210:3012:59
10:22
-0:05
24M
24.00 mi15:29:414:11:1710:289:55
9:55
-0:27
40K
24.85 mi15:38:164:19:5210:278:35
10:02
+0:07
25.2M
25.20 mi15:41:514:23:2710:273:35
10:23
+0:21
Finish
26.22 mi15:51:204:32:5610:259:29
9:18
-1:05

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

9:18 /mi

Average Pace

10:25 /mi

Slowest Pace

11:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

59:45

22% of race

Time at Steady Pace

3:22:11

74% of race

Time at Slower Pace

11:00

4% of race

Average Pace: 10:25 /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 mi11:51:2533:0110:3833:01
10:38
#25011
10K
6.21 mi12:23:351:05:1110:2932:10
10:21
#24703
15K
9.32 mi12:55:211:36:5710:2431:46
10:13
#24440
20K
12.43 mi13:27:252:09:0110:2332:04
10:19
#24185
Half
13.11 mi13:34:242:16:0010:226:59
10:14
#24152
25K
15.53 mi14:00:032:41:3910:2425:39
10:35
#23982
30K
18.64 mi14:33:213:14:5710:2733:18
10:43
#23717
20M
20.00 mi14:47:583:29:3410:2914:37
10:45
#23599
21M
21.00 mi14:58:583:40:3410:3011:00
11:00
#23491
35K
21.75 mi15:06:473:48:2310:307:49
10:27
#23456
23M
23.00 mi15:19:464:01:2210:3012:59
10:22
#23328
24M
24.00 mi15:29:414:11:1710:289:55
9:55
#23235
40K
24.85 mi15:38:164:19:5210:278:35
10:02
#23111
25.2M
25.20 mi15:41:514:23:2710:273:35
10:23
#23058
Finish
26.22 mi15:51:204:32:5610:259:29
9:18
#22955
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25011104371043723935(Top 90%)9858(Top 86%)9858(Top 202%)
10K6.21 mi3.10 mi24703+30810266+17110266+17124408(Top 92%)10119(Top 89%)10119(Top 207%)
15K9.32 mi3.11 mi24440+26310127+13910127+13923935(Top 90%)9858(Top 86%)9858(Top 202%)
20K12.43 mi3.11 mi24185+2559992+1359992+13523514(Top 88%)9638(Top 84%)9638(Top 197%)
Half13.11 mi0.68 mi24152+339982+109982+1023740(Top 89%)9761(Top 85%)9761(Top 200%)
25K15.53 mi2.42 mi23982+1709888+949888+9423323(Top 88%)9570(Top 84%)9570(Top 196%)
30K18.64 mi3.11 mi23717+2659760+1289760+12822643(Top 85%)9267(Top 81%)9267(Top 190%)
20M20.00 mi1.36 mi23599+1189711+499711+4922272(Top 84%)9127(Top 80%)9127(Top 187%)
21M21.00 mi1.00 mi23491+1089656+559656+5520847(Top 78%)8383(Top 73%)8383(Top 172%)
35K21.75 mi0.75 mi23456+359647+99647+922297(Top 84%)9215(Top 81%)9215(Top 189%)
23M23.00 mi1.25 mi23328+1289594+539594+5321014(Top 79%)8536(Top 75%)8536(Top 175%)
24M24.00 mi1.00 mi23235+939548+469548+4620576(Top 77%)8316(Top 73%)8316(Top 170%)
40K24.85 mi0.85 mi23111+1249500+489500+4820098(Top 75%)8116(Top 71%)8116(Top 166%)
25.2M25.20 mi0.35 mi23058+539475+259475+2518834(Top 71%)7438(Top 65%)7438(Top 152%)
Finish26.22 mi1.02 mi22955+1039427+489427+4819432(Top 73%)7701(Top 67%)7701(Top 158%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

23935

Females

9858

F18-39

9858

5K→10K

3.1 - 6.2 mi

Top 92%
×5stories
+79ft-138ft

Overall

24408

Females

10119

F18-39

10119

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

23935

Females

9858

F18-39

9858

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

23514

Females

9638

F18-39

9638

20K→Half

12.4 - 13.1 mi

Top 89%
×2stories
+19ft-37ft

Overall

23740

Females

9761

F18-39

9761

Half→25K

13.1 - 15.5 mi

Top 88%
×4stories
+66ft-88ft

Overall

23323

Females

9570

F18-39

9570

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

22643

Females

9267

F18-39

9267

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

22272

Females

9127

F18-39

9127

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20847

Females

8383

F18-39

8383

21M→35K

21.0 - 21.8 mi

Top 84%
×7stories
+17ft-86ft

Overall

22297

Females

9215

F18-39

9215

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

21014

Females

8536

F18-39

8536

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

20576

Females

8316

F18-39

8316

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

20098

Females

8116

F18-39

8116

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

18834

Females

7438

F18-39

7438

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2stories
+22ft-21ft

Overall

19432

Females

7701

F18-39

7701

Passing Analysis

Category:
Athletes Passed
2244
Passed By
188
Net Change
+2056
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25011
5K → 10K38577+308#25011#24703
10K → 15K28825+263#24703#24440
15K → 20K26611+255#24440#24185
20K → Half407+33#24185#24152
Half → 25K18818+170#24152#23982
25K → 30K27813+265#23982#23717
30K → 20M1268+118#23717#23599
20M → 21M1113+108#23599#23491
21M → 35K438+35#23491#23456
35K → 23M1324+128#23456#23328
23M → 24M952+93#23328#23235
24M → 40K1284+124#23235#23111
40K → 25.2M552+53#23111#23058
25.2M → Finish1096+103#23058#22955
TOTALS2244188+2056
📊

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