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BOSTON MARATHON 2023

Lucy Chow

Bib: 29451•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F60-64)
#0 / 527
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
35:55
Rank: #26241
Start → 5K
35:55 | 11:34/mi
10K· 6.21 mi
1:11:42
Rank: #26125 (+116)
5K → 10K
35:47 | 11:31/mi
15K· 9.32 mi
1:49:44
Rank: #26161 (-36)
10K → 15K
38:02 | 12:15/mi
20K· 12.43 mi
2:31:47
Rank: #26272 (-111)
15K → 20K
42:03 | 13:32/mi
Half· 13.11 mi
2:40:50
Rank: #26294 (-22)
20K → Half
9:03 | 13:16/mi
25K· 15.53 mi
3:15:18
Rank: #26321 (-27)
Half → 25K
34:28 | 14:13/mi
30K· 18.64 mi
4:04:09
Rank: #26445 (-124)
25K → 30K
48:51 | 15:43/mi
20M
4:24:59
Rank: #26459 (-14)
30K → 20M
20:50 | 15:20/mi
21M
4:40:59
Rank: #26458 (+1)
20M → 21M
16:00 | 16:00/mi
35K· 21.75 mi
4:50:52
Rank: #26445 (+13)
21M → 35K
9:53 | 13:13/mi
23M
5:07:53
Rank: #26418 (+27)
35K → 23M
17:01 | 13:35/mi
24M
5:20:37
Rank: #26389 (+29)
23M → 24M
12:44 | 12:44/mi
40K· 24.85 mi
5:32:21
Rank: #26370 (+19)
24M → 40K
11:44 | 13:43/mi
25.2M
5:38:13
Rank: #26381 (-11)
40K → 25.2M
5:52 | 17:01/mi
Finish· 26.22 mi
5:50:58
Rank: #26368 (+13)
25.2M → Finish
12:45 | 12:31/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:40:50
Pace12:16 /mi
2nd Half
Distance13.11 mi
Time3:10:08
Pace14:30 /mi
📊Positive Split: 18.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:0535:5511:3435:55
11:34
-
10K
6.21 mi12:29:521:11:4211:3235:47
11:31
-0:03
15K
9.32 mi13:07:541:49:4411:4638:02
12:15
+0:44
20K
12.43 mi13:49:572:31:4712:1342:03
13:32
+1:17
Half
13.11 mi13:59:002:40:5012:169:03
13:16
-0:16
25K
15.53 mi14:33:283:15:1812:3434:28
14:13
+0:57
30K
18.64 mi15:22:194:04:0913:0648:51
15:43
+1:30
20M
20.00 mi15:43:094:24:5913:1520:50
15:20
-0:23
21M
21.00 mi15:59:094:40:5913:2316:00
16:00
+0:40
35K
21.75 mi16:09:024:50:5213:229:53
13:13
-2:47
23M
23.00 mi16:26:035:07:5313:2317:01
13:35
+0:22
24M
24.00 mi16:38:475:20:3713:2212:44
12:44
-0:51
40K
24.85 mi16:50:315:32:2113:2211:44
13:43
+0:59
25.2M
25.20 mi16:56:235:38:1313:255:52
17:01
+3:18
Finish
26.22 mi17:09:085:50:5813:2412:45
12:31
-4:30

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

11:31 /mi

Average Pace

13:24 /mi

Slowest Pace

17:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:13

39% of race

Time at Steady Pace

2:04:12

35% of race

Time at Slower Pace

1:31:33

26% of race

Average Pace: 13:23 /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 mi11:54:0535:5511:3435:55
11:34
#26241
10K
6.21 mi12:29:521:11:4211:3235:47
11:31
#26125
15K
9.32 mi13:07:541:49:4411:4638:02
12:15
#26161
20K
12.43 mi13:49:572:31:4712:1342:03
13:32
#26272
Half
13.11 mi13:59:002:40:5012:169:03
13:16
#26294
25K
15.53 mi14:33:283:15:1812:3434:28
14:13
#26321
30K
18.64 mi15:22:194:04:0913:0648:51
15:43
#26445
20M
20.00 mi15:43:094:24:5913:1520:50
15:20
#26459
21M
21.00 mi15:59:094:40:5913:2316:00
16:00
#26458
35K
21.75 mi16:09:024:50:5213:229:53
13:13
#26445
23M
23.00 mi16:26:035:07:5313:2317:01
13:35
#26418
24M
24.00 mi16:38:475:20:3713:2212:44
12:44
#26389
40K
24.85 mi16:50:315:32:2113:2211:44
13:43
#26370
25.2M
25.20 mi16:56:235:38:1313:255:52
17:01
#26381
Finish
26.22 mi17:09:085:50:5813:2412:45
12:31
#26368
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi26241111911119126199(Top 98%)11165(Top 98%)11165(Top 2119%)
10K6.21 mi3.10 mi26125+11611121+7011121+7025971(Top 98%)11023(Top 96%)11023(Top 2092%)
15K9.32 mi3.11 mi26161-3611142-2111142-2126199(Top 98%)11165(Top 98%)11165(Top 2119%)
20K12.43 mi3.11 mi26272-11111208-6611208-6626425(Top 99%)11311(Top 99%)11311(Top 2146%)
Half13.11 mi0.68 mi26294-2211220-1211220-1226417(Top 99%)11316(Top 99%)11316(Top 2147%)
25K15.53 mi2.42 mi26321-2711236-1611236-1626420(Top 99%)11318(Top 99%)11318(Top 2148%)
30K18.64 mi3.11 mi26445-12411319-8311319-8326545(Top 100%)11384(Top 100%)11384(Top 2160%)
20M20.00 mi1.36 mi26459-1411330-1111330-1126389(Top 99%)11321(Top 99%)11321(Top 2148%)
21M21.00 mi1.00 mi26458+111328+211328+226224(Top 99%)11234(Top 98%)11234(Top 2132%)
35K21.75 mi0.75 mi26445+1311320+811320+825715(Top 97%)11004(Top 96%)11004(Top 2088%)
23M23.00 mi1.25 mi26418+2711307+1311307+1325572(Top 96%)10943(Top 96%)10943(Top 2076%)
24M24.00 mi1.00 mi26389+2911291+1611291+1625286(Top 95%)10825(Top 95%)10825(Top 2054%)
40K24.85 mi0.85 mi26370+1911280+1111280+1125516(Top 96%)10932(Top 96%)10932(Top 2074%)
25.2M25.20 mi0.35 mi26381-1111291-1111291-1126374(Top 99%)11333(Top 99%)11333(Top 2150%)
Finish26.22 mi1.02 mi26368+1311283+811283+825697(Top 97%)11030(Top 97%)11030(Top 2093%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21stories
+97ft-345ft

Overall

26199

Females

11165

F60-64

11165

5K→10K

3.1 - 6.2 mi

Top 98%
×5stories
+79ft-138ft

Overall

25971

Females

11023

F60-64

11023

10K→15K

6.2 - 9.3 mi

Top 98%
×3stories
+67ft-78ft

Overall

26199

Females

11165

F60-64

11165

15K→20K

9.3 - 12.4 mi

Top 99%
×5stories
+106ft-86ft

Overall

26425

Females

11311

F60-64

11311

20K→Half

12.4 - 13.1 mi

Top 99%
×2stories
+19ft-37ft

Overall

26417

Females

11316

F60-64

11316

Half→25K

13.1 - 15.5 mi

Top 99%
×4stories
+66ft-88ft

Overall

26420

Females

11318

F60-64

11318

25K→30K

15.5 - 18.6 mi

Top 100%
×9stories
+181ft-148ft

Overall

26545

Females

11384

F60-64

11384

30K→20M

18.6 - 20.0 mi

Top 99%
×5stories
+64ft-50ft

Overall

26389

Females

11321

F60-64

11321

20M→21M

20.0 - 21.0 mi

Top 99%
×8stories
+106ft-24ft

Overall

26224

Females

11234

F60-64

11234

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

25715

Females

11004

F60-64

11004

35K→23M

21.8 - 23.0 mi

Top 96%
×5stories
+23ft-63ft

Overall

25572

Females

10943

F60-64

10943

23M→24M

23.0 - 24.0 mi

Top 95%
×6stories
+12ft-82ft

Overall

25286

Females

10825

F60-64

10825

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

25516

Females

10932

F60-64

10932

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

26374

Females

11333

F60-64

11333

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2stories
+22ft-21ft

Overall

25697

Females

11030

F60-64

11030

Passing Analysis

Category:
Athletes Passed
344
Passed By
471
Net Change
-127
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26241
5K → 10K14529+116#26241#26125
10K → 15K3470-36#26125#26161
15K → 20K19130-111#26161#26272
20K → Half426-22#26272#26294
Half → 25K835-27#26294#26321
25K → 30K6130-124#26321#26445
30K → 20M923-14#26445#26459
20M → 21M54+1#26459#26458
21M → 35K152+13#26458#26445
35K → 23M303+27#26445#26418
23M → 24M301+29#26418#26389
24M → 40K201+19#26389#26370
40K → 25.2M112-11#26370#26381
25.2M → Finish185+13#26381#26368
TOTALS344471-127
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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