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BOSTON MARATHON 2023

Corinna Chan

Bib: 25500•F

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:05
Rank: #24291
Start → 5K
10:20/mi
32:05 split
10K· 6.21 mi
1:03:54
Rank: #24231 (+60)
5K → 10K
10:14/mi
31:49 split
15K· 9.32 mi
1:35:56
Rank: #24203 (+28)
10K → 15K
10:19/mi
32:02 split
20K· 12.43 mi
2:07:14
Rank: #23889 (+314)
15K → 20K
10:04/mi
31:18 split
Half· 13.11 mi
2:13:46
Rank: #23815 (+74)
20K → Half
9:35/mi
6:32 split
25K· 15.53 mi
2:38:37
Rank: #23623 (+192)
Half → 25K
10:15/mi
24:51 split
30K· 18.64 mi
3:11:10
Rank: #23346 (+277)
25K → 30K
10:29/mi
32:33 split
20M
3:25:36
Rank: #23249 (+97)
30K → 20M
10:37/mi
14:26 split
21M
3:36:36
Rank: #23130 (+119)
20M → 21M
11:00/mi
11:00 split
35K· 21.75 mi
3:43:54
Rank: #23048 (+82)
21M → 35K
9:45/mi
7:18 split
23M
3:57:23
Rank: #22956 (+92)
35K → 23M
10:46/mi
13:29 split
24M
4:07:54
Rank: #22919 (+37)
23M → 24M
10:31/mi
10:31 split
40K· 24.85 mi
4:16:25
Rank: #22819 (+100)
24M → 40K
9:58/mi
8:31 split
25.2M
4:20:21
Rank: #22801 (+18)
40K → 25.2M
11:24/mi
3:56 split
Finish· 26.22 mi
4:30:28
Rank: #22767 (+34)
25.2M → Finish
9:56/mi
10:07 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:13:46
Pace10:12 /mi
2nd Half
Distance13.11 mi
Time2:16:42
Pace10:26 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:1032:0510:2032:05
10:20
-
10K
6.21 mi12:19:591:03:5410:1731:49
10:14
-0:06
15K
9.32 mi12:52:011:35:5610:1832:02
10:19
+0:05
20K
12.43 mi13:23:192:07:1410:1431:18
10:04
-0:15
Half
13.11 mi13:29:512:13:4610:126:32
9:35
-0:29
25K
15.53 mi13:54:422:38:3710:1324:51
10:15
+0:40
30K
18.64 mi14:27:153:11:1010:1532:33
10:29
+0:14
20M
20.00 mi14:41:413:25:3610:1714:26
10:37
+0:08
21M
21.00 mi14:52:413:36:3610:1911:00
11:00
+0:23
35K
21.75 mi14:59:593:43:5410:187:18
9:45
-1:15
23M
23.00 mi15:13:283:57:2310:1913:29
10:46
+1:01
24M
24.00 mi15:23:594:07:5410:2010:31
10:31
-0:15
40K
24.85 mi15:32:304:16:2510:198:31
9:58
-0:33
25.2M
25.20 mi15:36:264:20:2110:203:56
11:24
+1:26
Finish
26.22 mi15:46:334:30:2810:1910:07
9:56
-1:28

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

9:35 /mi

Average Pace

10:19 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:47:37

84% of race

Time at Steady Pace

38:55

14% of race

Time at Slower Pace

3:56

1% of race

Average Pace: 10:19 /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 mi11:48:1032:0510:2032:05
10:20
#24291
10K
6.21 mi12:19:591:03:5410:1731:49
10:14
#24231
15K
9.32 mi12:52:011:35:5610:1832:02
10:19
#24203
20K
12.43 mi13:23:192:07:1410:1431:18
10:04
#23889
Half
13.11 mi13:29:512:13:4610:126:32
9:35
#23815
25K
15.53 mi13:54:422:38:3710:1324:51
10:15
#23623
30K
18.64 mi14:27:153:11:1010:1532:33
10:29
#23346
20M
20.00 mi14:41:413:25:3610:1714:26
10:37
#23249
21M
21.00 mi14:52:413:36:3610:1911:00
11:00
#23130
35K
21.75 mi14:59:593:43:5410:187:18
9:45
#23048
23M
23.00 mi15:13:283:57:2310:1913:29
10:46
#22956
24M
24.00 mi15:23:594:07:5410:2010:31
10:31
#22919
40K
24.85 mi15:32:304:16:2510:198:31
9:58
#22819
25.2M
25.20 mi15:36:264:20:2110:203:56
11:24
#22801
Finish
26.22 mi15:46:334:30:2810:1910:07
9:56
#22767
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24291100331003324115(Top 91%)9958(Top 87%)9958(Top 204%)
10K6.21 mi3.10 mi24231+6010015+1810015+1824210(Top 91%)10004(Top 88%)10004(Top 205%)
15K9.32 mi3.11 mi24203+2810002+1310002+1324115(Top 91%)9958(Top 87%)9958(Top 204%)
20K12.43 mi3.11 mi23889+3149824+1789824+17823074(Top 87%)9389(Top 82%)9389(Top 192%)
Half13.11 mi0.68 mi23815+749790+349790+3422345(Top 84%)8980(Top 79%)8980(Top 184%)
25K15.53 mi2.42 mi23623+1929689+1019689+10122744(Top 85%)9244(Top 81%)9244(Top 189%)
30K18.64 mi3.11 mi23346+2779561+1289561+12822165(Top 83%)8991(Top 79%)8991(Top 184%)
20M20.00 mi1.36 mi23249+979525+369525+3621994(Top 83%)8978(Top 79%)8978(Top 184%)
21M21.00 mi1.00 mi23130+1199479+469479+4620846(Top 78%)8382(Top 73%)8382(Top 172%)
35K21.75 mi0.75 mi23048+829437+429437+4220668(Top 78%)8320(Top 73%)8320(Top 170%)
23M23.00 mi1.25 mi22956+929403+349403+3421916(Top 82%)9025(Top 79%)9025(Top 185%)
24M24.00 mi1.00 mi22919+379392+119392+1122081(Top 83%)9143(Top 80%)9143(Top 187%)
40K24.85 mi0.85 mi22819+1009345+479345+4719888(Top 75%)8005(Top 70%)8005(Top 164%)
25.2M25.20 mi0.35 mi22801+189337+89337+821395(Top 80%)8814(Top 77%)8814(Top 180%)
Finish26.22 mi1.02 mi22767+349323+149323+1421580(Top 81%)8901(Top 78%)8901(Top 182%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21stories
+97ft-345ft

Overall

24115

Females

9958

F18-39

9958

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

24210

Females

10004

F18-39

10004

10K→15K

6.2 - 9.3 mi

Top 91%
×3stories
+67ft-78ft

Overall

24115

Females

9958

F18-39

9958

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

23074

Females

9389

F18-39

9389

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

22345

Females

8980

F18-39

8980

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

22744

Females

9244

F18-39

9244

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

22165

Females

8991

F18-39

8991

30K→20M

18.6 - 20.0 mi

Top 83%
×5stories
+64ft-50ft

Overall

21994

Females

8978

F18-39

8978

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20846

Females

8382

F18-39

8382

21M→35K

21.0 - 21.8 mi

Top 78%
×7stories
+17ft-86ft

Overall

20668

Females

8320

F18-39

8320

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

21916

Females

9025

F18-39

9025

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

22081

Females

9143

F18-39

9143

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19888

Females

8005

F18-39

8005

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21395

Females

8814

F18-39

8814

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

21580

Females

8901

F18-39

8901

Passing Analysis

Category:
Athletes Passed
1910
Passed By
386
Net Change
+1524
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24291
5K → 10K226166+60#24291#24231
10K → 15K135107+28#24231#24203
15K → 20K32612+314#24203#23889
20K → Half740+74#23889#23815
Half → 25K20715+192#23815#23623
25K → 30K2858+277#23623#23346
30K → 20M11114+97#23346#23249
20M → 21M1234+119#23249#23130
21M → 35K842+82#23130#23048
35K → 23M10210+92#23048#22956
23M → 24M6326+37#22956#22919
24M → 40K1011+100#22919#22819
40K → 25.2M268+18#22819#22801
25.2M → Finish4713+34#22801#22767
TOTALS1910386+1524
📊

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