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BOSTON MARATHON 2023

Sarah Baxter

Bib: 10890•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 35%
Gender (Female)
#0 / 11423
Top 16%
Division (F18-39)
#0 / 4884
Top 29%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:59
Rank: #11632
Start → 5K
23:59 | 7:43/mi
10K· 6.21 mi
47:34
Rank: #11393 (+239)
5K → 10K
23:35 | 7:35/mi
15K· 9.32 mi
1:11:23
Rank: #11441 (-48)
10K → 15K
23:49 | 7:40/mi
20K· 12.43 mi
1:35:17
Rank: #11246 (+195)
15K → 20K
23:54 | 7:42/mi
Half· 13.11 mi
1:40:28
Rank: #11224 (+22)
20K → Half
5:11 | 7:36/mi
25K· 15.53 mi
1:59:09
Rank: #11059 (+165)
Half → 25K
18:41 | 7:42/mi
30K· 18.64 mi
2:23:34
Rank: #10792 (+267)
25K → 30K
24:25 | 7:52/mi
20M
2:34:01
Rank: #10560 (+232)
30K → 20M
10:27 | 7:41/mi
21M
2:42:06
Rank: #10383 (+177)
20M → 21M
8:05 | 8:05/mi
35K· 21.75 mi
2:47:39
Rank: #10267 (+116)
21M → 35K
5:33 | 7:25/mi
23M
2:57:02
Rank: #9981 (+286)
35K → 23M
9:23 | 7:30/mi
24M
3:04:19
Rank: #9768 (+213)
23M → 24M
7:17 | 7:17/mi
40K· 24.85 mi
3:10:43
Rank: #9611 (+157)
24M → 40K
6:24 | 7:29/mi
25.2M
3:13:30
Rank: #9543 (+68)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
3:20:46
Rank: #9393 (+150)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:40:28
Pace7:40 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:40:18
Pace7:39 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4323:597:4323:59
7:43
-
10K
6.21 mi11:14:1847:347:3923:35
7:35
-0:08
15K
9.32 mi11:38:071:11:237:4023:49
7:40
+0:05
20K
12.43 mi12:02:011:35:177:4023:54
7:42
+0:02
Half
13.11 mi12:07:121:40:287:405:11
7:36
-0:06
25K
15.53 mi12:25:531:59:097:4018:41
7:42
+0:06
30K
18.64 mi12:50:182:23:347:4224:25
7:52
+0:10
20M
20.00 mi13:00:452:34:017:4210:27
7:41
-0:11
21M
21.00 mi13:08:502:42:067:438:05
8:05
+0:24
35K
21.75 mi13:14:232:47:397:435:33
7:25
-0:40
23M
23.00 mi13:23:462:57:027:429:23
7:30
+0:05
24M
24.00 mi13:31:033:04:197:417:17
7:17
-0:13
40K
24.85 mi13:37:273:10:437:406:24
7:29
+0:12
25.2M
25.20 mi13:40:143:13:307:412:47
8:04
+0:35
Finish
26.22 mi13:47:303:20:467:407:16
7:08
-0:56

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

7:08 /mi

Average Pace

7:40 /mi

Slowest Pace

8:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:29

82% of race

Time at Steady Pace

35:17

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:39 /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 mi10:50:4323:597:4323:59
7:43
#11632
10K
6.21 mi11:14:1847:347:3923:35
7:35
#11393
15K
9.32 mi11:38:071:11:237:4023:49
7:40
#11441
20K
12.43 mi12:02:011:35:177:4023:54
7:42
#11246
Half
13.11 mi12:07:121:40:287:405:11
7:36
#11224
25K
15.53 mi12:25:531:59:097:4018:41
7:42
#11059
30K
18.64 mi12:50:182:23:347:4224:25
7:52
#10792
20M
20.00 mi13:00:452:34:017:4210:27
7:41
#10560
21M
21.00 mi13:08:502:42:067:438:05
8:05
#10383
35K
21.75 mi13:14:232:47:397:435:33
7:25
#10267
23M
23.00 mi13:23:462:57:027:429:23
7:30
#9981
24M
24.00 mi13:31:033:04:197:417:17
7:17
#9768
40K
24.85 mi13:37:273:10:437:406:24
7:29
#9611
25.2M
25.20 mi13:40:143:13:307:412:47
8:04
#9543
Finish
26.22 mi13:47:303:20:467:407:16
7:08
#9393
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi116322656265611558(Top 43%)2656(Top 23%)2656(Top 54%)
10K6.21 mi3.10 mi11393+2392540+1162540+11611249(Top 42%)2461(Top 22%)2461(Top 50%)
15K9.32 mi3.11 mi11441-482569-292569-2911558(Top 43%)2656(Top 23%)2656(Top 54%)
20K12.43 mi3.11 mi11246+1952468+1012468+10110862(Top 41%)2337(Top 20%)2337(Top 48%)
Half13.11 mi0.68 mi11224+222456+122456+1211012(Top 41%)2354(Top 21%)2354(Top 48%)
25K15.53 mi2.42 mi11059+1652385+712385+7110336(Top 39%)2143(Top 19%)2143(Top 44%)
30K18.64 mi3.11 mi10792+2672293+922293+929822(Top 37%)2075(Top 18%)2075(Top 42%)
20M20.00 mi1.36 mi10560+2322202+912202+918139(Top 31%)1460(Top 13%)1460(Top 30%)
21M21.00 mi1.00 mi10383+1772139+632139+637940(Top 30%)1499(Top 13%)1499(Top 31%)
35K21.75 mi0.75 mi10267+1162095+442095+447993(Top 30%)1500(Top 13%)1500(Top 31%)
23M23.00 mi1.25 mi9981+2861977+1181977+1186416(Top 24%)966(Top 8%)966(Top 20%)
24M24.00 mi1.00 mi9768+2131919+581919+586306(Top 24%)1025(Top 9%)1025(Top 21%)
40K24.85 mi0.85 mi9611+1571874+451874+456682(Top 25%)1248(Top 11%)1248(Top 26%)
25.2M25.20 mi0.35 mi9543+681856+181856+187001(Top 26%)1424(Top 12%)1424(Top 29%)
Finish26.22 mi1.02 mi9393+1501816+401816+406029(Top 23%)1076(Top 9%)1076(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21stories
+97ft-345ft

Overall

11558

Females

2656

F18-39

2656

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11249

Females

2461

F18-39

2461

10K→15K

6.2 - 9.3 mi

Top 43%
×3stories
+67ft-78ft

Overall

11558

Females

2656

F18-39

2656

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

10862

Females

2337

F18-39

2337

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

11012

Females

2354

F18-39

2354

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

10336

Females

2143

F18-39

2143

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

9822

Females

2075

F18-39

2075

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8139

Females

1460

F18-39

1460

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

7940

Females

1499

F18-39

1499

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

7993

Females

1500

F18-39

1500

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6416

Females

966

F18-39

966

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6306

Females

1025

F18-39

1025

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6682

Females

1248

F18-39

1248

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7001

Females

1424

F18-39

1424

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6029

Females

1076

F18-39

1076

Passing Analysis

Category:
Athletes Passed
2887*
Passed By
648
Net Change
+2239
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11632
5K → 10K431192+239#11632#11393
10K → 15K171219-48#11393#11441
15K → 20K26772+195#11441#11246
20K → Half3715+22#11246#11224
Half → 25K20944+165#11224#11059
25K → 30K32154+267#11059#10792
30K → 20M237*5+232#10792#10560
20M → 21M18811+177#10560#10383
21M → 35K1226+116#10383#10267
35K → 23M286*0+286#10267#9981
23M → 24M2152+213#9981#9768
24M → 40K164*7+157#9768#9611
40K → 25.2M768+68#9611#9543
25.2M → Finish16313+150#9543#9393
TOTALS2887*648+2239

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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