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BOSTON MARATHON 2023

Sarah Singer

Bib: 12878•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 29%
Gender (Female)
#0 / 11423
Top 10%
Division (F18-39)
#0 / 4884
Top 18%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:11
Rank: #9319
Start → 5K
23:11 | 7:28/mi
10K· 6.21 mi
46:04
Rank: #9286 (+33)
5K → 10K
22:53 | 7:22/mi
15K· 9.32 mi
1:08:46
Rank: #9032 (+254)
10K → 15K
22:42 | 7:18/mi
20K· 12.43 mi
1:31:36
Rank: #8774 (+258)
15K → 20K
22:50 | 7:21/mi
Half· 13.11 mi
1:36:30
Rank: #8714 (+60)
20K → Half
4:54 | 7:11/mi
25K· 15.53 mi
1:54:31
Rank: #8615 (+99)
Half → 25K
18:01 | 7:26/mi
30K· 18.64 mi
2:17:52
Rank: #8328 (+287)
25K → 30K
23:21 | 7:31/mi
20M
2:28:10
Rank: #8230 (+98)
30K → 20M
10:18 | 7:35/mi
21M
2:35:55
Rank: #8068 (+162)
20M → 21M
7:45 | 7:45/mi
35K· 21.75 mi
2:41:18
Rank: #7987 (+81)
21M → 35K
5:23 | 7:12/mi
23M
2:50:40
Rank: #7848 (+139)
35K → 23M
9:22 | 7:29/mi
24M
2:57:58
Rank: #7745 (+103)
23M → 24M
7:18 | 7:18/mi
40K· 24.85 mi
3:04:22
Rank: #7678 (+67)
24M → 40K
6:24 | 7:29/mi
25.2M
3:07:07
Rank: #7656 (+22)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
3:14:32
Rank: #7601 (+55)
25.2M → Finish
7:25 | 7:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:30
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:38:02
Pace7:29 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3023:117:2823:11
7:28
-
10K
6.21 mi11:13:2346:047:2522:53
7:22
-0:06
15K
9.32 mi11:36:051:08:467:2322:42
7:18
-0:04
20K
12.43 mi11:58:551:31:367:2222:50
7:21
+0:03
Half
13.11 mi12:03:491:36:307:224:54
7:11
-0:10
25K
15.53 mi12:21:501:54:317:2218:01
7:26
+0:15
30K
18.64 mi12:45:112:17:527:2423:21
7:31
+0:05
20M
20.00 mi12:55:292:28:107:2410:18
7:35
+0:04
21M
21.00 mi13:03:142:35:557:257:45
7:45
+0:10
35K
21.75 mi13:08:372:41:187:255:23
7:12
-0:33
23M
23.00 mi13:17:592:50:407:259:22
7:29
+0:17
24M
24.00 mi13:25:172:57:587:257:18
7:18
-0:11
40K
24.85 mi13:31:413:04:227:256:24
7:29
+0:11
25.2M
25.20 mi13:34:263:07:077:262:45
7:58
+0:29
Finish
26.22 mi13:41:513:14:327:257:25
7:17
-0:41

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

7:11 /mi

Average Pace

7:25 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:47

99% of race

Time at Steady Pace

2:45

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:25 /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 mi10:50:3023:117:2823:11
7:28
#9319
10K
6.21 mi11:13:2346:047:2522:53
7:22
#9286
15K
9.32 mi11:36:051:08:467:2322:42
7:18
#9032
20K
12.43 mi11:58:551:31:367:2222:50
7:21
#8774
Half
13.11 mi12:03:491:36:307:224:54
7:11
#8714
25K
15.53 mi12:21:501:54:317:2218:01
7:26
#8615
30K
18.64 mi12:45:112:17:527:2423:21
7:31
#8328
20M
20.00 mi12:55:292:28:107:2410:18
7:35
#8230
21M
21.00 mi13:03:142:35:557:257:45
7:45
#8068
35K
21.75 mi13:08:372:41:187:255:23
7:12
#7987
23M
23.00 mi13:17:592:50:407:259:22
7:29
#7848
24M
24.00 mi13:25:172:57:587:257:18
7:18
#7745
40K
24.85 mi13:31:413:04:227:256:24
7:29
#7678
25.2M
25.20 mi13:34:263:07:077:262:45
7:58
#7656
Finish
26.22 mi13:41:513:14:327:257:25
7:17
#7601
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9319153915398626(Top 32%)1285(Top 11%)1285(Top 26%)
10K6.21 mi3.10 mi9286+331530+91530+99360(Top 35%)1566(Top 14%)1566(Top 32%)
15K9.32 mi3.11 mi9032+2541439+911439+918626(Top 32%)1285(Top 11%)1285(Top 26%)
20K12.43 mi3.11 mi8774+2581341+981341+988152(Top 31%)1158(Top 10%)1158(Top 24%)
Half13.11 mi0.68 mi8714+601324+171324+177793(Top 29%)1013(Top 9%)1013(Top 21%)
25K15.53 mi2.42 mi8615+991302+221302+228264(Top 31%)1274(Top 11%)1274(Top 26%)
30K18.64 mi3.11 mi8328+2871241+611241+617336(Top 28%)1048(Top 9%)1048(Top 21%)
20M20.00 mi1.36 mi8230+981222+191222+197375(Top 28%)1168(Top 10%)1168(Top 24%)
21M21.00 mi1.00 mi8068+1621174+481174+485938(Top 22%)787(Top 7%)787(Top 16%)
35K21.75 mi0.75 mi7987+811160+141160+146544(Top 25%)937(Top 8%)937(Top 19%)
23M23.00 mi1.25 mi7848+1391130+301130+306339(Top 24%)935(Top 8%)935(Top 19%)
24M24.00 mi1.00 mi7745+1031114+161114+166411(Top 24%)1050(Top 9%)1050(Top 21%)
40K24.85 mi0.85 mi7678+671103+111103+116661(Top 25%)1227(Top 11%)1227(Top 25%)
25.2M25.20 mi0.35 mi7656+221107-41107-46411(Top 24%)1195(Top 10%)1195(Top 24%)
Finish26.22 mi1.02 mi7601+551111-41111-46997(Top 26%)1424(Top 12%)1424(Top 29%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

8626

Females

1285

F18-39

1285

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9360

Females

1566

F18-39

1566

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

8626

Females

1285

F18-39

1285

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8152

Females

1158

F18-39

1158

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

7793

Females

1013

F18-39

1013

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8264

Females

1274

F18-39

1274

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7336

Females

1048

F18-39

1048

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7375

Females

1168

F18-39

1168

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5938

Females

787

F18-39

787

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6544

Females

937

F18-39

937

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6339

Females

935

F18-39

935

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6411

Females

1050

F18-39

1050

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6661

Females

1227

F18-39

1227

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6411

Females

1195

F18-39

1195

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

6997

Females

1424

F18-39

1424

Passing Analysis

Category:
Athletes Passed
2297
Passed By
579
Net Change
+1718
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9319
5K → 10K288255+33#9319#9286
10K → 15K30652+254#9286#9032
15K → 20K28325+258#9032#8774
20K → Half644+60#8774#8714
Half → 25K14344+99#8714#8615
25K → 30K33245+287#8615#8328
30K → 20M11719+98#8328#8230
20M → 21M17311+162#8230#8068
21M → 35K909+81#8068#7987
35K → 23M15617+139#7987#7848
23M → 24M12017+103#7848#7745
24M → 40K9528+67#7745#7678
40K → 25.2M4119+22#7678#7656
25.2M → Finish8934+55#7656#7601
TOTALS2297579+1718
📊

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