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BOSTON MARATHON 2023

Katherine Prevost

Bib: 9517•F

TN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 25%
Gender (Female)
#0 / 11423
Top 7%
Division (F18-39)
#0 / 4884
Top 13%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:39
Rank: #8055
Start → 5K
22:39 | 7:17/mi
10K· 6.21 mi
44:29
Rank: #7485 (+570)
5K → 10K
21:50 | 7:02/mi
15K· 9.32 mi
1:05:53
Rank: #6898 (+587)
10K → 15K
21:24 | 6:53/mi
20K· 12.43 mi
1:27:31
Rank: #6594 (+304)
15K → 20K
21:38 | 6:58/mi
Half· 13.11 mi
1:32:17
Rank: #6593 (+1)
20K → Half
4:46 | 6:59/mi
25K· 15.53 mi
1:49:20
Rank: #6438 (+155)
Half → 25K
17:03 | 7:02/mi
30K· 18.64 mi
2:11:54
Rank: #6272 (+166)
25K → 30K
22:34 | 7:16/mi
20M
2:21:59
Rank: #6225 (+47)
30K → 20M
10:05 | 7:25/mi
21M
2:30:04
Rank: #6266 (-41)
20M → 21M
8:05 | 8:05/mi
35K· 21.75 mi
2:35:24
Rank: #6237 (+29)
21M → 35K
5:20 | 7:08/mi
23M
2:45:00
Rank: #6241 (-4)
35K → 23M
9:36 | 7:40/mi
24M
2:52:33
Rank: #6255 (-14)
23M → 24M
7:33 | 7:33/mi
40K· 24.85 mi
2:59:21
Rank: #6333 (-78)
24M → 40K
6:48 | 7:57/mi
25.2M
3:02:33
Rank: #6416 (-83)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:10:43
Rank: #6577 (-161)
25.2M → Finish
8:10 | 8:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:17
Pace7:02 /mi
2nd Half
Distance13.11 mi
Time1:38:26
Pace7:31 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:2422:397:1722:39
7:17
-
10K
6.21 mi11:10:1444:297:1021:50
7:02
-0:15
15K
9.32 mi11:31:381:05:537:0421:24
6:53
-0:09
20K
12.43 mi11:53:161:27:317:0321:38
6:58
+0:05
Half
13.11 mi11:58:021:32:177:024:46
6:59
+0:01
25K
15.53 mi12:15:051:49:207:0217:03
7:02
+0:03
30K
18.64 mi12:37:392:11:547:0522:34
7:16
+0:14
20M
20.00 mi12:47:442:21:597:0610:05
7:25
+0:09
21M
21.00 mi12:55:492:30:047:098:05
8:05
+0:40
35K
21.75 mi13:01:092:35:247:095:20
7:08
-0:57
23M
23.00 mi13:10:452:45:007:109:36
7:40
+0:32
24M
24.00 mi13:18:182:52:337:117:33
7:33
-0:07
40K
24.85 mi13:25:062:59:217:136:48
7:57
+0:24
25.2M
25.20 mi13:28:183:02:337:153:12
9:17
+1:20
Finish
26.22 mi13:36:283:10:437:178:10
8:01
-1:16

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

6:53 /mi

Average Pace

7:17 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

43:02

23% of race

Time at Steady Pace

1:51:50

59% of race

Time at Slower Pace

35:51

19% of race

Average Pace: 7:16 /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 mi10:48:2422:397:1722:39
7:17
#8055
10K
6.21 mi11:10:1444:297:1021:50
7:02
#7485
15K
9.32 mi11:31:381:05:537:0421:24
6:53
#6898
20K
12.43 mi11:53:161:27:317:0321:38
6:58
#6594
Half
13.11 mi11:58:021:32:177:024:46
6:59
#6593
25K
15.53 mi12:15:051:49:207:0217:03
7:02
#6438
30K
18.64 mi12:37:392:11:547:0522:34
7:16
#6272
20M
20.00 mi12:47:442:21:597:0610:05
7:25
#6225
21M
21.00 mi12:55:492:30:047:098:05
8:05
#6266
35K
21.75 mi13:01:092:35:247:095:20
7:08
#6237
23M
23.00 mi13:10:452:45:007:109:36
7:40
#6241
24M
24.00 mi13:18:182:52:337:117:33
7:33
#6255
40K
24.85 mi13:25:062:59:217:136:48
7:57
#6333
25.2M
25.20 mi13:28:183:02:337:153:12
9:17
#6416
Finish
26.22 mi13:36:283:10:437:178:10
8:01
#6577
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8055103310335901(Top 22%)514(Top 4%)514(Top 11%)
10K6.21 mi3.10 mi7485+570852+181852+1817020(Top 26%)757(Top 7%)757(Top 15%)
15K9.32 mi3.11 mi6898+587709+143709+1435901(Top 22%)514(Top 4%)514(Top 11%)
20K12.43 mi3.11 mi6594+304656+53656+535758(Top 22%)478(Top 4%)478(Top 10%)
Half13.11 mi0.68 mi6593+1659-3659-36517(Top 24%)640(Top 6%)640(Top 13%)
25K15.53 mi2.42 mi6438+155624+35624+355780(Top 22%)491(Top 4%)491(Top 10%)
30K18.64 mi3.11 mi6272+166599+25599+255850(Top 22%)586(Top 5%)586(Top 12%)
20M20.00 mi1.36 mi6225+47598+1598+16315(Top 24%)789(Top 7%)789(Top 16%)
21M21.00 mi1.00 mi6266-41618-20618-207911(Top 30%)1470(Top 13%)1470(Top 30%)
35K21.75 mi0.75 mi6237+29616+2616+26126(Top 23%)797(Top 7%)797(Top 16%)
23M23.00 mi1.25 mi6241-4629-13629-137559(Top 28%)1392(Top 12%)1392(Top 29%)
24M24.00 mi1.00 mi6255-14643-14643-148055(Top 30%)1688(Top 15%)1688(Top 35%)
40K24.85 mi0.85 mi6333-78676-33676-339735(Top 37%)2511(Top 22%)2511(Top 51%)
25.2M25.20 mi0.35 mi6416-83703-27703-2714082(Top 53%)4766(Top 42%)4766(Top 98%)
Finish26.22 mi1.02 mi6577-161771-68771-6812227(Top 46%)3811(Top 33%)3811(Top 78%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

5901

Females

514

F18-39

514

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7020

Females

757

F18-39

757

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

5901

Females

514

F18-39

514

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

5758

Females

478

F18-39

478

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6517

Females

640

F18-39

640

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

5780

Females

491

F18-39

491

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

5850

Females

586

F18-39

586

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6315

Females

789

F18-39

789

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

7911

Females

1470

F18-39

1470

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6126

Females

797

F18-39

797

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7559

Females

1392

F18-39

1392

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8055

Females

1688

F18-39

1688

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9735

Females

2511

F18-39

2511

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14082

Females

4766

F18-39

4766

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

12227

Females

3811

F18-39

3811

Passing Analysis

Category:
Athletes Passed
2274
Passed By
796
Net Change
+1478
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8055
5K → 10K62454+570#8055#7485
10K → 15K5958+587#7485#6898
15K → 20K3117+304#6898#6594
20K → Half2423+1#6594#6593
Half → 25K16611+155#6593#6438
25K → 30K20337+166#6438#6272
30K → 20M8235+47#6272#6225
20M → 21M4889-41#6225#6266
21M → 35K4112+29#6266#6237
35K → 23M6872-4#6237#6241
23M → 24M5973-14#6241#6255
24M → 40K29107-78#6255#6333
40K → 25.2M891-83#6333#6416
25.2M → Finish16177-161#6416#6577
TOTALS2274796+1478
📊

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