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BOSTON MARATHON 2023

Cassie Lin

Bib: 26063•F

MA

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
32:10
Rank: #24370
Start → 5K
32:10 | 10:21/mi
10K· 6.21 mi
1:04:32
Rank: #24464 (-94)
5K → 10K
32:22 | 10:25/mi
15K· 9.32 mi
1:35:52
Rank: #24188 (+276)
10K → 15K
31:20 | 10:05/mi
20K· 12.43 mi
2:07:56
Rank: #24006 (+182)
15K → 20K
32:04 | 10:19/mi
Half· 13.11 mi
2:14:54
Rank: #23982 (+24)
20K → Half
6:58 | 10:13/mi
25K· 15.53 mi
2:41:31
Rank: #23969 (+13)
Half → 25K
26:37 | 10:59/mi
30K· 18.64 mi
3:17:38
Rank: #23992 (-23)
25K → 30K
36:07 | 11:37/mi
20M
3:33:27
Rank: #23988 (+4)
30K → 20M
15:49 | 11:38/mi
21M
3:47:05
Rank: #24060 (-72)
20M → 21M
13:38 | 13:38/mi
35K· 21.75 mi
3:56:08
Rank: #24102 (-42)
21M → 35K
9:03 | 12:06/mi
23M
4:11:04
Rank: #24093 (+9)
35K → 23M
14:56 | 11:56/mi
24M
4:22:20
Rank: #24069 (+24)
23M → 24M
11:16 | 11:16/mi
40K· 24.85 mi
4:33:33
Rank: #24108 (-39)
24M → 40K
11:13 | 13:07/mi
25.2M
4:38:30
Rank: #24158 (-50)
40K → 25.2M
4:57 | 14:21/mi
Finish· 26.22 mi
4:49:34
Rank: #24144 (+14)
25.2M → Finish
11:04 | 10:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:54
Pace10:17 /mi
2nd Half
Distance13.11 mi
Time2:34:40
Pace11:48 /mi
📊Positive Split: 14.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:3932:1010:2132:10
10:21
-
10K
6.21 mi12:27:011:04:3210:2332:22
10:25
+0:04
15K
9.32 mi12:58:211:35:5210:1731:20
10:05
-0:20
20K
12.43 mi13:30:252:07:5610:1832:04
10:19
+0:14
Half
13.11 mi13:37:232:14:5410:176:58
10:13
-0:06
25K
15.53 mi14:04:002:41:3110:2426:37
10:59
+0:46
30K
18.64 mi14:40:073:17:3810:3636:07
11:37
+0:38
20M
20.00 mi14:55:563:33:2710:4015:49
11:38
+0:01
21M
21.00 mi15:09:343:47:0510:4913:38
13:38
+2:00
35K
21.75 mi15:18:373:56:0810:519:03
12:06
-1:32
23M
23.00 mi15:33:334:11:0410:5514:56
11:56
-0:10
24M
24.00 mi15:44:494:22:2010:5611:16
11:16
-0:40
40K
24.85 mi15:56:024:33:3311:0011:13
13:07
+1:51
25.2M
25.20 mi16:00:594:38:3011:034:57
14:21
+1:14
Finish
26.22 mi16:12:034:49:3411:0311:04
10:52
-3:29

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

10:05 /mi

Average Pace

11:03 /mi

Slowest Pace

14:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:54

47% of race

Time at Steady Pace

1:40:53

35% of race

Time at Slower Pace

53:47

19% of race

Average Pace: 11:03 /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 mi11:54:3932:1010:2132:10
10:21
#24370
10K
6.21 mi12:27:011:04:3210:2332:22
10:25
#24464
15K
9.32 mi12:58:211:35:5210:1731:20
10:05
#24188
20K
12.43 mi13:30:252:07:5610:1832:04
10:19
#24006
Half
13.11 mi13:37:232:14:5410:176:58
10:13
#23982
25K
15.53 mi14:04:002:41:3110:2426:37
10:59
#23969
30K
18.64 mi14:40:073:17:3810:3636:07
11:37
#23992
20M
20.00 mi14:55:563:33:2710:4015:49
11:38
#23988
21M
21.00 mi15:09:343:47:0510:4913:38
13:38
#24060
35K
21.75 mi15:18:373:56:0810:519:03
12:06
#24102
23M
23.00 mi15:33:334:11:0410:5514:56
11:56
#24093
24M
24.00 mi15:44:494:22:2010:5611:16
11:16
#24069
40K
24.85 mi15:56:024:33:3311:0011:13
13:07
#24108
25.2M
25.20 mi16:00:594:38:3011:034:57
14:21
#24158
Finish
26.22 mi16:12:034:49:3411:0311:04
10:52
#24144
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24370100781007823676(Top 89%)9708(Top 85%)9708(Top 199%)
10K6.21 mi3.10 mi24464-9410141-6310141-6324532(Top 92%)10184(Top 89%)10184(Top 209%)
15K9.32 mi3.11 mi24188+2769995+1469995+14623676(Top 89%)9708(Top 85%)9708(Top 199%)
20K12.43 mi3.11 mi24006+1829896+999896+9923517(Top 88%)9641(Top 84%)9641(Top 197%)
Half13.11 mi0.68 mi23982+249883+139883+1323706(Top 89%)9748(Top 85%)9748(Top 200%)
25K15.53 mi2.42 mi23969+139880+39880+323944(Top 90%)9926(Top 87%)9926(Top 203%)
30K18.64 mi3.11 mi23992-239914-349914-3424033(Top 90%)10029(Top 88%)10029(Top 205%)
20M20.00 mi1.36 mi23988+49918-49918-423740(Top 89%)9923(Top 87%)9923(Top 203%)
21M21.00 mi1.00 mi24060-729976-589976-5824715(Top 93%)10462(Top 92%)10462(Top 214%)
35K21.75 mi0.75 mi24102-4210006-3010006-3024775(Top 93%)10542(Top 92%)10542(Top 216%)
23M23.00 mi1.25 mi24093+910014-810014-823900(Top 90%)10066(Top 88%)10066(Top 206%)
24M24.00 mi1.00 mi24069+2410008+610008+623545(Top 88%)9920(Top 87%)9920(Top 203%)
40K24.85 mi0.85 mi24108-3910039-3110039-3125034(Top 94%)10689(Top 94%)10689(Top 219%)
25.2M25.20 mi0.35 mi24158-5010066-2710066-2725287(Top 95%)10818(Top 95%)10818(Top 221%)
Finish26.22 mi1.02 mi24144+1410067-110067-123721(Top 89%)10018(Top 88%)10018(Top 205%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

23676

Females

9708

F18-39

9708

5K→10K

3.1 - 6.2 mi

Top 92%
×5stories
+79ft-138ft

Overall

24532

Females

10184

F18-39

10184

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

23676

Females

9708

F18-39

9708

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

23517

Females

9641

F18-39

9641

20K→Half

12.4 - 13.1 mi

Top 89%
×2stories
+19ft-37ft

Overall

23706

Females

9748

F18-39

9748

Half→25K

13.1 - 15.5 mi

Top 90%
×4stories
+66ft-88ft

Overall

23944

Females

9926

F18-39

9926

25K→30K

15.5 - 18.6 mi

Top 90%
×9stories
+181ft-148ft

Overall

24033

Females

10029

F18-39

10029

30K→20M

18.6 - 20.0 mi

Top 89%
×5stories
+64ft-50ft

Overall

23740

Females

9923

F18-39

9923

20M→21M

20.0 - 21.0 mi

Top 93%
×8stories
+106ft-24ft

Overall

24715

Females

10462

F18-39

10462

21M→35K

21.0 - 21.8 mi

Top 93%
×7stories
+17ft-86ft

Overall

24775

Females

10542

F18-39

10542

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

23900

Females

10066

F18-39

10066

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

23545

Females

9920

F18-39

9920

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

25034

Females

10689

F18-39

10689

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

25287

Females

10818

F18-39

10818

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2stories
+22ft-21ft

Overall

23721

Females

10018

F18-39

10018

Passing Analysis

Category:
Athletes Passed
1107
Passed By
881
Net Change
+226
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24370
5K → 10K144238-94#24370#24464
10K → 15K31539+276#24464#24188
15K → 20K21028+182#24188#24006
20K → Half3511+24#24006#23982
Half → 25K9481+13#23982#23969
25K → 30K99122-23#23969#23992
30K → 20M5046+4#23992#23988
20M → 21M1486-72#23988#24060
21M → 35K951-42#24060#24102
35K → 23M3930+9#24102#24093
23M → 24M4622+24#24093#24069
24M → 40K1857-39#24069#24108
40K → 25.2M252-50#24108#24158
25.2M → Finish3218+14#24158#24144
TOTALS1107881+226
📊

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