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BOSTON MARATHON 2023

Stephanie Lewis

Bib: 20303•F

MO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:54
Rank: #21540
Start → 5K
28:54 | 9:18/mi
10K· 6.21 mi
58:03
Rank: #21867 (-327)
5K → 10K
29:09 | 9:23/mi
15K· 9.32 mi
1:26:35
Rank: #21661 (+206)
10K → 15K
28:32 | 9:11/mi
20K· 12.43 mi
1:56:34
Rank: #21742 (-81)
15K → 20K
29:59 | 9:39/mi
Half· 13.11 mi
2:02:53
Rank: #21733 (+9)
20K → Half
6:19 | 9:16/mi
25K· 15.53 mi
2:26:59
Rank: #21770 (-37)
Half → 25K
24:06 | 9:56/mi
30K· 18.64 mi
2:59:10
Rank: #21783 (-13)
25K → 30K
32:11 | 10:22/mi
20M
3:13:50
Rank: #21855 (-72)
30K → 20M
14:40 | 10:48/mi
21M
3:25:17
Rank: #21863 (-8)
20M → 21M
11:27 | 11:27/mi
35K· 21.75 mi
3:32:36
Rank: #21833 (+30)
21M → 35K
7:19 | 9:47/mi
23M
3:45:46
Rank: #21798 (+35)
35K → 23M
13:10 | 10:31/mi
24M
3:55:50
Rank: #21770 (+28)
23M → 24M
10:04 | 10:04/mi
40K· 24.85 mi
4:05:03
Rank: #21760 (+10)
24M → 40K
9:13 | 10:47/mi
25.2M
4:09:01
Rank: #21752 (+8)
40K → 25.2M
3:58 | 11:30/mi
Finish· 26.22 mi
4:19:21
Rank: #21777 (-25)
25.2M → Finish
10:20 | 10:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:53
Pace9:22 /mi
2nd Half
Distance13.11 mi
Time2:16:28
Pace10:25 /mi
📊Positive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:3328:549:1828:54
9:18
-
10K
6.21 mi11:51:4258:039:2129:09
9:23
+0:05
15K
9.32 mi12:20:141:26:359:1728:32
9:11
-0:12
20K
12.43 mi12:50:131:56:349:2329:59
9:39
+0:28
Half
13.11 mi12:56:322:02:539:226:19
9:16
-0:23
25K
15.53 mi13:20:382:26:599:2824:06
9:56
+0:40
30K
18.64 mi13:52:492:59:109:3732:11
10:22
+0:26
20M
20.00 mi14:07:293:13:509:4114:40
10:48
+0:26
21M
21.00 mi14:18:563:25:179:4711:27
11:27
+0:39
35K
21.75 mi14:26:153:32:369:477:19
9:47
-1:40
23M
23.00 mi14:39:253:45:469:4913:10
10:31
+0:44
24M
24.00 mi14:49:293:55:509:5010:04
10:04
-0:27
40K
24.85 mi14:58:424:05:039:529:13
10:47
+0:43
25.2M
25.20 mi15:02:404:09:019:533:58
11:30
+0:43
Finish
26.22 mi15:13:004:19:219:5410:20
10:08
-1:22

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

9:11 /mi

Average Pace

9:54 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:53

47% of race

Time at Steady Pace

1:24:00

32% of race

Time at Slower Pace

52:28

20% of race

Average Pace: 9:53 /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 mi11:22:3328:549:1828:54
9:18
#21540
10K
6.21 mi11:51:4258:039:2129:09
9:23
#21867
15K
9.32 mi12:20:141:26:359:1728:32
9:11
#21661
20K
12.43 mi12:50:131:56:349:2329:59
9:39
#21742
Half
13.11 mi12:56:322:02:539:226:19
9:16
#21733
25K
15.53 mi13:20:382:26:599:2824:06
9:56
#21770
30K
18.64 mi13:52:492:59:109:3732:11
10:22
#21783
20M
20.00 mi14:07:293:13:509:4114:40
10:48
#21855
21M
21.00 mi14:18:563:25:179:4711:27
11:27
#21863
35K
21.75 mi14:26:153:32:369:477:19
9:47
#21833
23M
23.00 mi14:39:253:45:469:4913:10
10:31
#21798
24M
24.00 mi14:49:293:55:509:5010:04
10:04
#21770
40K
24.85 mi14:58:424:05:039:529:13
10:47
#21760
25.2M
25.20 mi15:02:404:09:019:533:58
11:30
#21752
Finish
26.22 mi15:13:004:19:219:5410:20
10:08
#21777
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi215408656865621258(Top 80%)8379(Top 73%)8379(Top 694%)
10K6.21 mi3.10 mi21867-3278780-1248780-12422179(Top 83%)8916(Top 78%)8916(Top 739%)
15K9.32 mi3.11 mi21661+2068654+1268654+12621258(Top 80%)8379(Top 73%)8379(Top 694%)
20K12.43 mi3.11 mi21742-818677-238677-2322017(Top 83%)8810(Top 77%)8810(Top 730%)
Half13.11 mi0.68 mi21733+98675+28675+221397(Top 80%)8469(Top 74%)8469(Top 702%)
25K15.53 mi2.42 mi21770-378694-198694-1922088(Top 83%)8884(Top 78%)8884(Top 736%)
30K18.64 mi3.11 mi21783-138712-188712-1821908(Top 82%)8854(Top 78%)8854(Top 734%)
20M20.00 mi1.36 mi21855-728764-528764-5222342(Top 84%)9161(Top 80%)9161(Top 759%)
21M21.00 mi1.00 mi21863-88778-148778-1421806(Top 82%)8892(Top 78%)8892(Top 737%)
35K21.75 mi0.75 mi21833+308773+58773+520719(Top 78%)8350(Top 73%)8350(Top 692%)
23M23.00 mi1.25 mi21798+358766+78766+721365(Top 80%)8720(Top 76%)8720(Top 722%)
24M24.00 mi1.00 mi21770+288762+48762+420992(Top 79%)8543(Top 75%)8543(Top 708%)
40K24.85 mi0.85 mi21760+108770-88770-821903(Top 82%)9097(Top 80%)9097(Top 754%)
25.2M25.20 mi0.35 mi21752+88773-38773-321594(Top 81%)8909(Top 78%)8909(Top 738%)
Finish26.22 mi1.02 mi21777-258781-88781-822143(Top 83%)9193(Top 80%)9193(Top 762%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

21258

Females

8379

F50-54

8379

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

22179

Females

8916

F50-54

8916

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

21258

Females

8379

F50-54

8379

15K→20K

9.3 - 12.4 mi

Top 83%
×5stories
+106ft-86ft

Overall

22017

Females

8810

F50-54

8810

20K→Half

12.4 - 13.1 mi

Top 80%
×2stories
+19ft-37ft

Overall

21397

Females

8469

F50-54

8469

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

22088

Females

8884

F50-54

8884

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

21908

Females

8854

F50-54

8854

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

22342

Females

9161

F50-54

9161

20M→21M

20.0 - 21.0 mi

Top 82%
×8stories
+106ft-24ft

Overall

21806

Females

8892

F50-54

8892

21M→35K

21.0 - 21.8 mi

Top 78%
×7stories
+17ft-86ft

Overall

20719

Females

8350

F50-54

8350

35K→23M

21.8 - 23.0 mi

Top 80%
×5stories
+23ft-63ft

Overall

21365

Females

8720

F50-54

8720

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

20992

Females

8543

F50-54

8543

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21903

Females

9097

F50-54

9097

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21594

Females

8909

F50-54

8909

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

22143

Females

9193

F50-54

9193

Passing Analysis

Category:
Athletes Passed
1147
Passed By
1384
Net Change
-237
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21540
5K → 10K146473-327#21540#21867
10K → 15K28579+206#21867#21661
15K → 20K97178-81#21661#21742
20K → Half2314+9#21742#21733
Half → 25K86123-37#21733#21770
25K → 30K145158-13#21770#21783
30K → 20M50122-72#21783#21855
20M → 21M5563-8#21855#21863
21M → 35K4010+30#21863#21833
35K → 23M8045+35#21833#21798
23M → 24M5426+28#21798#21770
24M → 40K4333+10#21770#21760
40K → 25.2M2214+8#21760#21752
25.2M → Finish2146-25#21752#21777
TOTALS11471384-237
📊

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