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BOSTON MARATHON 2023

Nicole Lew

Bib: 26520•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
33:02
Rank: #25033
Start → 5K
33:02 | 10:38/mi
10K· 6.21 mi
1:04:30
Rank: #24451 (+582)
5K → 10K
31:28 | 10:08/mi
15K· 9.32 mi
1:36:10
Rank: #24264 (+187)
10K → 15K
31:40 | 10:12/mi
20K· 12.43 mi
2:09:08
Rank: #24201 (+63)
15K → 20K
32:58 | 10:37/mi
Half· 13.11 mi
2:16:16
Rank: #24191 (+10)
20K → Half
7:08 | 10:27/mi
25K· 15.53 mi
2:43:37
Rank: #24241 (-50)
Half → 25K
27:21 | 11:17/mi
30K· 18.64 mi
3:23:03
Rank: #24512 (-271)
25K → 30K
39:26 | 12:42/mi
20M
3:40:39
Rank: #24583 (-71)
30K → 20M
17:36 | 12:57/mi
21M
3:54:01
Rank: #24607 (-24)
20M → 21M
13:22 | 13:22/mi
35K· 21.75 mi
4:02:44
Rank: #24596 (+11)
21M → 35K
8:43 | 11:39/mi
23M
4:20:17
Rank: #24740 (-144)
35K → 23M
17:33 | 14:01/mi
24M
4:32:53
Rank: #24779 (-39)
23M → 24M
12:36 | 12:36/mi
40K· 24.85 mi
4:43:38
Rank: #24793 (-14)
24M → 40K
10:45 | 12:34/mi
25.2M
4:47:52
Rank: #24767 (+26)
40K → 25.2M
4:14 | 12:17/mi
Finish· 26.22 mi
4:58:19
Rank: #24727 (+40)
25.2M → Finish
10:27 | 10:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:16
Pace10:24 /mi
2nd Half
Distance13.11 mi
Time2:42:03
Pace12:22 /mi
📊Positive Split: 18.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:4833:0210:3833:02
10:38
-
10K
6.21 mi12:21:161:04:3010:2331:28
10:08
-0:30
15K
9.32 mi12:52:561:36:1010:1931:40
10:12
+0:04
20K
12.43 mi13:25:542:09:0810:2332:58
10:37
+0:25
Half
13.11 mi13:33:022:16:1610:247:08
10:27
-0:10
25K
15.53 mi14:00:232:43:3710:3227:21
11:17
+0:50
30K
18.64 mi14:39:493:23:0310:5439:26
12:42
+1:25
20M
20.00 mi14:57:253:40:3911:0217:36
12:57
+0:15
21M
21.00 mi15:10:473:54:0111:0913:22
13:22
+0:25
35K
21.75 mi15:19:304:02:4411:108:43
11:39
-1:43
23M
23.00 mi15:37:034:20:1711:1917:33
14:01
+2:22
24M
24.00 mi15:49:394:32:5311:2212:36
12:36
-1:25
40K
24.85 mi16:00:244:43:3811:2510:45
12:34
-0:02
25.2M
25.20 mi16:04:384:47:5211:254:14
12:17
-0:17
Finish
26.22 mi16:15:054:58:1911:2310:27
10:15
-2:02

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

10:08 /mi

Average Pace

11:23 /mi

Slowest Pace

14:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:43

49% of race

Time at Steady Pace

36:04

12% of race

Time at Slower Pace

1:55:32

39% of race

Average Pace: 11:23 /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 mi11:49:4833:0210:3833:02
10:38
#25033
10K
6.21 mi12:21:161:04:3010:2331:28
10:08
#24451
15K
9.32 mi12:52:561:36:1010:1931:40
10:12
#24264
20K
12.43 mi13:25:542:09:0810:2332:58
10:37
#24201
Half
13.11 mi13:33:022:16:1610:247:08
10:27
#24191
25K
15.53 mi14:00:232:43:3710:3227:21
11:17
#24241
30K
18.64 mi14:39:493:23:0310:5439:26
12:42
#24512
20M
20.00 mi14:57:253:40:3911:0217:36
12:57
#24583
21M
21.00 mi15:10:473:54:0111:0913:22
13:22
#24607
35K
21.75 mi15:19:304:02:4411:108:43
11:39
#24596
23M
23.00 mi15:37:034:20:1711:1917:33
14:01
#24740
24M
24.00 mi15:49:394:32:5311:2212:36
12:36
#24779
40K
24.85 mi16:00:244:43:3811:2510:45
12:34
#24793
25.2M
25.20 mi16:04:384:47:5211:254:14
12:17
#24767
Finish
26.22 mi16:15:054:58:1911:2310:27
10:15
#24727
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25033104501045023866(Top 90%)9822(Top 86%)9822(Top 201%)
10K6.21 mi3.10 mi24451+58210131+31910131+31923977(Top 90%)9877(Top 86%)9877(Top 202%)
15K9.32 mi3.11 mi24264+18710039+9210039+9223866(Top 90%)9822(Top 86%)9822(Top 201%)
20K12.43 mi3.11 mi24201+6310001+3810001+3824033(Top 90%)9927(Top 87%)9927(Top 203%)
Half13.11 mi0.68 mi24191+109999+29999+224156(Top 91%)10008(Top 88%)10008(Top 205%)
25K15.53 mi2.42 mi24241-5010040-4110040-4124382(Top 92%)10161(Top 89%)10161(Top 208%)
30K18.64 mi3.11 mi24512-27110210-17010210-17025167(Top 95%)10663(Top 93%)10663(Top 218%)
20M20.00 mi1.36 mi24583-7110261-5110261-5125136(Top 94%)10668(Top 93%)10668(Top 218%)
21M21.00 mi1.00 mi24607-2410273-1210273-1224468(Top 92%)10326(Top 90%)10326(Top 211%)
35K21.75 mi0.75 mi24596+1110280-710280-724297(Top 91%)10286(Top 90%)10286(Top 211%)
23M23.00 mi1.25 mi24740-14410371-9110371-9125838(Top 97%)11060(Top 97%)11060(Top 226%)
24M24.00 mi1.00 mi24779-3910403-3210403-3225162(Top 95%)10761(Top 94%)10761(Top 220%)
40K24.85 mi0.85 mi24793-1410416-1310416-1324528(Top 92%)10447(Top 91%)10447(Top 214%)
25.2M25.20 mi0.35 mi24767+2610403+1310403+1322970(Top 86%)9650(Top 84%)9650(Top 198%)
Finish26.22 mi1.02 mi24727+4010387+1610387+1622445(Top 84%)9359(Top 82%)9359(Top 192%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

23866

Females

9822

F18-39

9822

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

23977

Females

9877

F18-39

9877

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

23866

Females

9822

F18-39

9822

15K→20K

9.3 - 12.4 mi

Top 90%
×5stories
+106ft-86ft

Overall

24033

Females

9927

F18-39

9927

20K→Half

12.4 - 13.1 mi

Top 91%
×2stories
+19ft-37ft

Overall

24156

Females

10008

F18-39

10008

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

24382

Females

10161

F18-39

10161

25K→30K

15.5 - 18.6 mi

Top 95%
×9stories
+181ft-148ft

Overall

25167

Females

10663

F18-39

10663

30K→20M

18.6 - 20.0 mi

Top 94%
×5stories
+64ft-50ft

Overall

25136

Females

10668

F18-39

10668

20M→21M

20.0 - 21.0 mi

Top 92%
×8stories
+106ft-24ft

Overall

24468

Females

10326

F18-39

10326

21M→35K

21.0 - 21.8 mi

Top 91%
×7stories
+17ft-86ft

Overall

24297

Females

10286

F18-39

10286

35K→23M

21.8 - 23.0 mi

Top 97%
×5stories
+23ft-63ft

Overall

25838

Females

11060

F18-39

11060

23M→24M

23.0 - 24.0 mi

Top 95%
×6stories
+12ft-82ft

Overall

25162

Females

10761

F18-39

10761

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

24528

Females

10447

F18-39

10447

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

22970

Females

9650

F18-39

9650

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2stories
+22ft-21ft

Overall

22445

Females

9359

F18-39

9359

Passing Analysis

Category:
Athletes Passed
1346
Passed By
1040
Net Change
+306
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25033
5K → 10K61230+582#25033#24451
10K → 15K24154+187#24451#24264
15K → 20K13774+63#24264#24201
20K → Half2616+10#24201#24191
Half → 25K82132-50#24191#24241
25K → 30K44315-271#24241#24512
30K → 20M2596-71#24512#24583
20M → 21M2852-24#24583#24607
21M → 35K3120+11#24607#24596
35K → 23M13157-144#24596#24740
23M → 24M1049-39#24740#24779
24M → 40K2337-14#24779#24793
40K → 25.2M271+26#24793#24767
25.2M → Finish477+40#24767#24727
TOTALS13461040+306
📊

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