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BOSTON MARATHON 2023

Sarah Frey

Bib: 10335•F

CT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 17%
Gender (Female)
#0 / 11423
Top 3%
Division (F18-39)
#0 / 4884
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:27
Rank: #7664
Start → 5K
7:14/mi
22:27 split
10K· 6.21 mi
44:01
Rank: #7008 (+656)
5K → 10K
6:56/mi
21:34 split
15K· 9.32 mi
1:05:29
Rank: #6662 (+346)
10K → 15K
6:55/mi
21:28 split
20K· 12.43 mi
1:27:02
Rank: #6370 (+292)
15K → 20K
6:56/mi
21:33 split
Half· 13.11 mi
1:31:39
Rank: #6314 (+56)
20K → Half
6:46/mi
4:37 split
25K· 15.53 mi
1:48:13
Rank: #6010 (+304)
Half → 25K
6:50/mi
16:34 split
30K· 18.64 mi
2:09:49
Rank: #5611 (+399)
25K → 30K
6:57/mi
21:36 split
20M
2:19:19
Rank: #5457 (+154)
30K → 20M
6:59/mi
9:30 split
21M
2:26:40
Rank: #5318 (+139)
20M → 21M
7:21/mi
7:21 split
35K· 21.75 mi
2:31:36
Rank: #5197 (+121)
21M → 35K
6:36/mi
4:56 split
23M
2:40:08
Rank: #5000 (+197)
35K → 23M
6:49/mi
8:32 split
24M
2:46:54
Rank: #4885 (+115)
23M → 24M
6:46/mi
6:46 split
40K· 24.85 mi
2:52:46
Rank: #4786 (+99)
24M → 40K
6:52/mi
5:52 split
25.2M
2:55:20
Rank: #4748 (+38)
40K → 25.2M
7:27/mi
2:34 split
Finish· 26.22 mi
3:02:06
Rank: #4633 (+115)
25.2M → Finish
6:38/mi
6:46 split

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:31:39
Pace6:59 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:30:27
Pace6:54 /mi
📊Negative Split: 1.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:5122:277:1422:27
7:14
-
10K
6.21 mi11:10:2544:017:0521:34
6:56
-0:18
15K
9.32 mi11:31:531:05:297:0221:28
6:55
-0:01
20K
12.43 mi11:53:261:27:027:0021:33
6:56
+0:01
Half
13.11 mi11:58:031:31:396:594:37
6:46
-0:10
25K
15.53 mi12:14:371:48:136:5816:34
6:50
+0:04
30K
18.64 mi12:36:132:09:496:5821:36
6:57
+0:07
20M
20.00 mi12:45:432:19:196:589:30
6:59
+0:02
21M
21.00 mi12:53:042:26:406:597:21
7:21
+0:22
35K
21.75 mi12:58:002:31:366:584:56
6:36
-0:45
23M
23.00 mi13:06:322:40:086:588:32
6:49
+0:13
24M
24.00 mi13:13:182:46:546:576:46
6:46
-0:03
40K
24.85 mi13:19:102:52:466:575:52
6:52
+0:06
25.2M
25.20 mi13:21:442:55:206:572:34
7:27
+0:35
Finish
26.22 mi13:28:303:02:066:576:46
6:38
-0:49

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

6:36 /mi

Average Pace

6:57 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:11

95% of race

Time at Steady Pace

9:55

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:57 /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 mi10:48:5122:277:1422:27
7:14
#7664
10K
6.21 mi11:10:2544:017:0521:34
6:56
#7008
15K
9.32 mi11:31:531:05:297:0221:28
6:55
#6662
20K
12.43 mi11:53:261:27:027:0021:33
6:56
#6370
Half
13.11 mi11:58:031:31:396:594:37
6:46
#6314
25K
15.53 mi12:14:371:48:136:5816:34
6:50
#6010
30K
18.64 mi12:36:132:09:496:5821:36
6:57
#5611
20M
20.00 mi12:45:432:19:196:589:30
6:59
#5457
21M
21.00 mi12:53:042:26:406:597:21
7:21
#5318
35K
21.75 mi12:58:002:31:366:584:56
6:36
#5197
23M
23.00 mi13:06:322:40:086:588:32
6:49
#5000
24M
24.00 mi13:13:182:46:546:576:46
6:46
#4885
40K
24.85 mi13:19:102:52:466:575:52
6:52
#4786
25.2M
25.20 mi13:21:442:55:206:572:34
7:27
#4748
Finish
26.22 mi13:28:303:02:066:576:46
6:38
#4633
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi76648958956029(Top 23%)534(Top 5%)534(Top 11%)
10K6.21 mi3.10 mi7008+656735+160735+1606441(Top 24%)620(Top 5%)620(Top 13%)
15K9.32 mi3.11 mi6662+346652+83652+836029(Top 23%)534(Top 5%)534(Top 11%)
20K12.43 mi3.11 mi6370+292600+52600+525588(Top 21%)448(Top 4%)448(Top 9%)
Half13.11 mi0.68 mi6314+56589+11589+115074(Top 19%)374(Top 3%)374(Top 8%)
25K15.53 mi2.42 mi6010+304515+74515+744466(Top 17%)303(Top 3%)303(Top 6%)
30K18.64 mi3.11 mi5611+399450+65450+654045(Top 15%)267(Top 2%)267(Top 5%)
20M20.00 mi1.36 mi5457+154430+20430+204007(Top 15%)293(Top 3%)293(Top 6%)
21M21.00 mi1.00 mi5318+139417+13417+133914(Top 15%)299(Top 3%)299(Top 6%)
35K21.75 mi0.75 mi5197+121403+14403+143021(Top 11%)193(Top 2%)193(Top 4%)
23M23.00 mi1.25 mi5000+197385+18385+182776(Top 10%)182(Top 2%)182(Top 4%)
24M24.00 mi1.00 mi4885+115362+23362+233506(Top 13%)279(Top 2%)279(Top 6%)
40K24.85 mi0.85 mi4786+99354+8354+83166(Top 12%)266(Top 2%)266(Top 5%)
25.2M25.20 mi0.35 mi4748+38351+3351+33701(Top 14%)379(Top 3%)379(Top 8%)
Finish26.22 mi1.02 mi4633+115339+12339+123229(Top 12%)323(Top 3%)323(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21story building
+97ft-345ft

Overall

6029

Females

534

F18-39

534

5K→10K

3.1 - 6.2 mi

Top 24%
×5story building
+79ft-138ft

Overall

6441

Females

620

F18-39

620

10K→15K

6.2 - 9.3 mi

Top 23%
×3story building
+67ft-78ft

Overall

6029

Females

534

F18-39

534

15K→20K

9.3 - 12.4 mi

Top 21%
×5story building
+106ft-86ft

Overall

5588

Females

448

F18-39

448

20K→Half

12.4 - 13.1 mi

Top 19%
×2story building
+19ft-37ft

Overall

5074

Females

374

F18-39

374

Half→25K

13.1 - 15.5 mi

Top 17%
×4story building
+66ft-88ft

Overall

4466

Females

303

F18-39

303

25K→30K

15.5 - 18.6 mi

Top 15%
×9story building
+181ft-148ft

Overall

4045

Females

267

F18-39

267

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

4007

Females

293

F18-39

293

20M→21M

20.0 - 21.0 mi

Top 15%
×8story building
+106ft-24ft

Overall

3914

Females

299

F18-39

299

21M→35K

21.0 - 21.8 mi

Top 11%
×7story building
+17ft-86ft

Overall

3021

Females

193

F18-39

193

35K→23M

21.8 - 23.0 mi

Top 10%
×5story building
+23ft-63ft

Overall

2776

Females

182

F18-39

182

23M→24M

23.0 - 24.0 mi

Top 13%
×6story building
+12ft-82ft

Overall

3506

Females

279

F18-39

279

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3166

Females

266

F18-39

266

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3701

Females

379

F18-39

379

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2story building
+22ft-21ft

Overall

3229

Females

323

F18-39

323

Passing Analysis

Category:
Athletes Passed
3130
Passed By
99
Net Change
+3031
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7664
5K → 10K68529+656#7664#7008
10K → 15K35610+346#7008#6662
15K → 20K30412+292#6662#6370
20K → Half560+56#6370#6314
Half → 25K3073+304#6314#6010
25K → 30K4056+399#6010#5611
30K → 20M1584+154#5611#5457
20M → 21M1456+139#5457#5318
21M → 35K1221+121#5318#5197
35K → 23M2003+197#5197#5000
23M → 24M1227+115#5000#4885
24M → 40K1023+99#4885#4786
40K → 25.2M424+38#4786#4748
25.2M → Finish12611+115#4748#4633
TOTALS313099+3031
📊

Passing Visuals

Category:
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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