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BOSTON MARATHON 2023

Rachel Sandler

Bib: 14353•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 35%
Gender (Female)
#0 / 11423
Top 16%
Masters (Masters Women)
#0 / 6539
Top 6%
Division (F40-44)
#0 / 1878
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:43/mi
23:59
↑ 97↓ 3451.5%
10K· 6.21 mi
7:34/mi
47:31
↑ 79↓ 1380.4%
15K· 9.32 mi
7:36/mi
1:11:08
↑ 67↓ 78
20K· 12.43 mi
7:41/mi
1:35:00
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:40:07
↑ 19↓ 370.5%
25K· 15.53 mi
7:42/mi
1:58:47
↑ 66↓ 880.2%
30K· 18.64 mi
7:50/mi
2:23:07
↑ 181↓ 1480.2%
20M
7:51/mi
2:33:47
↑ 64↓ 500.2%
21M
8:06/mi
2:41:53
↑ 106↓ 241.6%
35K· 21.75 mi
7:28/mi
2:47:28
↑ 17↓ 861.7%
23M
7:30/mi
2:56:52
↑ 23↓ 630.6%
24M
7:20/mi
3:04:12
↓ 821.3%
40K· 24.85 mi
7:31/mi
3:10:38
↓ 200.3%
25.2M
8:04/mi
3:13:25
↑ 13↓ 160.2%
Finish· 26.22 mi
7:13/mi
3:20:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:40:07
Pace7:38 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:40:39
Pace7:41 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:2823:597:4323:59
7:43
-
10K
6.21 mi11:18:0047:317:3923:32
7:34
-0:09
15K
9.32 mi11:41:371:11:087:3823:37
7:36
+0:02
20K
12.43 mi12:05:291:35:007:3923:52
7:41
+0:05
Half
13.11 mi12:10:361:40:077:385:07
7:30
-0:11
25K
15.53 mi12:29:161:58:477:3918:40
7:42
+0:12
30K
18.64 mi12:53:362:23:077:4124:20
7:50
+0:08
20M
20.00 mi13:04:162:33:477:4110:40
7:51
+0:01
21M
21.00 mi13:12:222:41:537:438:06
8:06
+0:15
35K
21.75 mi13:17:572:47:287:425:35
7:28
-0:38
23M
23.00 mi13:27:212:56:527:419:24
7:30
+0:02
24M
24.00 mi13:34:413:04:127:417:20
7:20
-0:10
40K
24.85 mi13:41:073:10:387:406:26
7:31
+0:11
25.2M
25.20 mi13:43:543:13:257:412:47
8:04
+0:33
Finish
26.22 mi13:51:153:20:467:407:21
7:13
-0:51

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

7:13 /mi

Average Pace

7:40 /mi

Slowest Pace

8:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:09:53

95% of race

Time at Steady Pace

10:53

5% 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 mi10:54:2823:597:4323:59
7:43
#11631
10K
6.21 mi11:18:0047:317:3923:32
7:34
#11328
15K
9.32 mi11:41:371:11:087:3823:37
7:36
#11216
20K
12.43 mi12:05:291:35:007:3923:52
7:41
#11062
Half
13.11 mi12:10:361:40:077:385:07
7:30
#11014
25K
15.53 mi12:29:161:58:477:3918:40
7:42
#10876
30K
18.64 mi12:53:362:23:077:4124:20
7:50
#10589
20M
20.00 mi13:04:162:33:477:4110:40
7:51
#10471
21M
21.00 mi13:12:222:41:537:438:06
8:06
#10294
35K
21.75 mi13:17:572:47:287:425:35
7:28
#10202
23M
23.00 mi13:27:212:56:527:419:24
7:30
#9919
24M
24.00 mi13:34:413:04:127:417:20
7:20
#9735
40K
24.85 mi13:41:073:10:387:406:26
7:31
#9587
25.2M
25.20 mi13:43:543:13:257:412:47
8:04
#9519
Finish
26.22 mi13:51:153:20:467:407:21
7:13
#9392
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi116312655265511031(Top 41%)2360(Top 21%)2360(Top 126%)
10K6.21 mi3.10 mi11328+3032506+1492506+14911097(Top 42%)2367(Top 21%)2367(Top 126%)
15K9.32 mi3.11 mi11216+1122444+622444+6211031(Top 41%)2360(Top 21%)2360(Top 126%)
20K12.43 mi3.11 mi11062+1542359+852359+8510779(Top 40%)2297(Top 20%)2297(Top 122%)
Half13.11 mi0.68 mi11014+482336+232336+2310278(Top 39%)2011(Top 18%)2011(Top 107%)
25K15.53 mi2.42 mi10876+1382286+502286+5010294(Top 39%)2128(Top 19%)2128(Top 113%)
30K18.64 mi3.11 mi10589+2872198+882198+889611(Top 36%)1976(Top 17%)1976(Top 105%)
20M20.00 mi1.36 mi10471+1182157+412157+419243(Top 35%)1902(Top 17%)1902(Top 101%)
21M21.00 mi1.00 mi10294+1772095+622095+628040(Top 30%)1538(Top 13%)1538(Top 82%)
35K21.75 mi0.75 mi10202+922059+362059+368324(Top 31%)1626(Top 14%)1626(Top 87%)
23M23.00 mi1.25 mi9919+2831956+1031956+1036495(Top 24%)996(Top 9%)996(Top 53%)
24M24.00 mi1.00 mi9735+1841904+521904+526662(Top 25%)1144(Top 10%)1144(Top 61%)
40K24.85 mi0.85 mi9587+1481861+431861+436894(Top 26%)1325(Top 12%)1325(Top 71%)
25.2M25.20 mi0.35 mi9519+681847+141847+147000(Top 26%)1423(Top 12%)1423(Top 76%)
Finish26.22 mi1.02 mi9392+1271815+321815+326555(Top 25%)1266(Top 11%)1266(Top 67%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11031

Females

2360

F40-44

2360

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11097

Females

2367

F40-44

2367

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11031

Females

2360

F40-44

2360

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

10779

Females

2297

F40-44

2297

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10278

Females

2011

F40-44

2011

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

10294

Females

2128

F40-44

2128

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9611

Females

1976

F40-44

1976

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

9243

Females

1902

F40-44

1902

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

8040

Females

1538

F40-44

1538

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8324

Females

1626

F40-44

1626

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6495

Females

996

F40-44

996

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

6662

Females

1144

F40-44

1144

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6894

Females

1325

F40-44

1325

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7000

Females

1423

F40-44

1423

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2story building
+22ft-21ft

Overall

6555

Females

1266

F40-44

1266

Passing Analysis

Category:
Athletes Passed
2806*
Passed By
567
Net Change
+2239
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11631
5K → 10K476173+303#11631#11328
10K → 15K236124+112#11328#11216
15K → 20K23480+154#11216#11062
20K → Half579+48#11062#11014
Half → 25K18648+138#11014#10876
25K → 30K34053+287#10876#10589
30K → 20M140*22+118#10589#10471
20M → 21M19316+177#10471#10294
21M → 35K1019+92#10294#10202
35K → 23M283*0+283#10202#9919
23M → 24M1884+184#9919#9735
24M → 40K155*7+148#9735#9587
40K → 25.2M735+68#9587#9519
25.2M → Finish14417+127#9519#9392
TOTALS2806*567+2239

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

📊

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