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BOSTON MARATHON 2023

Leigh Knaus

Bib: 20072•F

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:33
Rank: #19847
Start → 5K
27:33 | 8:52/mi
10K· 6.21 mi
56:50
Rank: #21235 (-1388)
5K → 10K
29:17 | 9:26/mi
15K· 9.32 mi
1:27:16
Rank: #21876 (-641)
10K → 15K
30:26 | 9:48/mi
20K· 12.43 mi
1:57:22
Rank: #21930 (-54)
15K → 20K
30:06 | 9:41/mi
Half· 13.11 mi
2:03:34
Rank: #21876 (+54)
20K → Half
6:12 | 9:05/mi
25K· 15.53 mi
2:26:57
Rank: #21764 (+112)
Half → 25K
23:23 | 9:39/mi
30K· 18.64 mi
2:59:15
Rank: #21813 (-49)
25K → 30K
32:18 | 10:24/mi
20M
3:13:23
Rank: #21785 (+28)
30K → 20M
14:08 | 10:24/mi
21M
3:25:22
Rank: #21875 (-90)
20M → 21M
11:59 | 11:59/mi
35K· 21.75 mi
3:32:21
Rank: #21798 (+77)
21M → 35K
6:59 | 9:20/mi
23M
3:46:15
Rank: #21852 (-54)
35K → 23M
13:54 | 11:06/mi
24M
3:56:21
Rank: #21819 (+33)
23M → 24M
10:06 | 10:06/mi
40K· 24.85 mi
4:05:28
Rank: #21810 (+9)
24M → 40K
9:07 | 10:40/mi
25.2M
4:09:19
Rank: #21783 (+27)
40K → 25.2M
3:51 | 11:10/mi
Finish· 26.22 mi
4:19:58
Rank: #21839 (-56)
25.2M → Finish
10:39 | 10:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:34
Pace9:26 /mi
2nd Half
Distance13.11 mi
Time2:16:24
Pace10:24 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:4727:338:5227:33
8:52
-
10K
6.21 mi11:49:0456:509:0929:17
9:26
+0:34
15K
9.32 mi12:19:301:27:169:2230:26
9:48
+0:22
20K
12.43 mi12:49:361:57:229:2730:06
9:41
-0:07
Half
13.11 mi12:55:482:03:349:266:12
9:05
-0:36
25K
15.53 mi13:19:112:26:579:2823:23
9:39
+0:34
30K
18.64 mi13:51:292:59:159:3732:18
10:24
+0:45
20M
20.00 mi14:05:373:13:239:4014:08
10:24
0:00
21M
21.00 mi14:17:363:25:229:4711:59
11:59
+1:35
35K
21.75 mi14:24:353:32:219:466:59
9:20
-2:39
23M
23.00 mi14:38:293:46:159:5013:54
11:06
+1:46
24M
24.00 mi14:48:353:56:219:5110:06
10:06
-1:00
40K
24.85 mi14:57:424:05:289:539:07
10:40
+0:34
25.2M
25.20 mi15:01:334:09:199:543:51
11:10
+0:30
Finish
26.22 mi15:12:124:19:589:5510:39
10:27
-0:43

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

8:52 /mi

Average Pace

9:55 /mi

Slowest Pace

11:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:30

48% of race

Time at Steady Pace

1:37:37

38% of race

Time at Slower Pace

38:51

15% of race

Average Pace: 9:55 /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 mi11:19:4727:338:5227:33
8:52
#19847
10K
6.21 mi11:49:0456:509:0929:17
9:26
#21235
15K
9.32 mi12:19:301:27:169:2230:26
9:48
#21876
20K
12.43 mi12:49:361:57:229:2730:06
9:41
#21930
Half
13.11 mi12:55:482:03:349:266:12
9:05
#21876
25K
15.53 mi13:19:112:26:579:2823:23
9:39
#21764
30K
18.64 mi13:51:292:59:159:3732:18
10:24
#21813
20M
20.00 mi14:05:373:13:239:4014:08
10:24
#21785
21M
21.00 mi14:17:363:25:229:4711:59
11:59
#21875
35K
21.75 mi14:24:353:32:219:466:59
9:20
#21798
23M
23.00 mi14:38:293:46:159:5013:54
11:06
#21852
24M
24.00 mi14:48:353:56:219:5110:06
10:06
#21819
40K
24.85 mi14:57:424:05:289:539:07
10:40
#21810
25.2M
25.20 mi15:01:334:09:199:543:51
11:10
#21783
Finish
26.22 mi15:12:124:19:589:5510:39
10:27
#21839
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi198477720772023034(Top 87%)9362(Top 82%)9362(Top 499%)
10K6.21 mi3.10 mi21235-13888438-7188438-71822293(Top 84%)8977(Top 79%)8977(Top 478%)
15K9.32 mi3.11 mi21876-6418767-3298767-32923034(Top 87%)9362(Top 82%)9362(Top 499%)
20K12.43 mi3.11 mi21930-548794-278794-2722128(Top 83%)8872(Top 78%)8872(Top 472%)
Half13.11 mi0.68 mi21876+548759+358759+3520833(Top 78%)8157(Top 71%)8157(Top 434%)
25K15.53 mi2.42 mi21764+1128690+698690+6921286(Top 80%)8434(Top 74%)8434(Top 449%)
30K18.64 mi3.11 mi21813-498729-398729-3921997(Top 83%)8907(Top 78%)8907(Top 474%)
20M20.00 mi1.36 mi21785+288727+28727+221527(Top 81%)8713(Top 76%)8713(Top 464%)
21M21.00 mi1.00 mi21875-908784-578784-5722734(Top 85%)9405(Top 82%)9405(Top 501%)
35K21.75 mi0.75 mi21798+778753+318753+3119332(Top 73%)7573(Top 66%)7573(Top 403%)
23M23.00 mi1.25 mi21852-548791-388791-3822544(Top 85%)9347(Top 82%)9347(Top 498%)
24M24.00 mi1.00 mi21819+338784+78784+721081(Top 79%)8598(Top 75%)8598(Top 458%)
40K24.85 mi0.85 mi21810+98795-118795-1121638(Top 81%)8961(Top 78%)8961(Top 477%)
25.2M25.20 mi0.35 mi21783+278784+118784+1120863(Top 78%)8515(Top 75%)8515(Top 453%)
Finish26.22 mi1.02 mi21839-568821-378821-3722911(Top 86%)9608(Top 84%)9608(Top 512%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21stories
+97ft-345ft

Overall

23034

Females

9362

F40-44

9362

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

22293

Females

8977

F40-44

8977

10K→15K

6.2 - 9.3 mi

Top 87%
×3stories
+67ft-78ft

Overall

23034

Females

9362

F40-44

9362

15K→20K

9.3 - 12.4 mi

Top 83%
×5stories
+106ft-86ft

Overall

22128

Females

8872

F40-44

8872

20K→Half

12.4 - 13.1 mi

Top 78%
×2stories
+19ft-37ft

Overall

20833

Females

8157

F40-44

8157

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

21286

Females

8434

F40-44

8434

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

21997

Females

8907

F40-44

8907

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

21527

Females

8713

F40-44

8713

20M→21M

20.0 - 21.0 mi

Top 85%
×8stories
+106ft-24ft

Overall

22734

Females

9405

F40-44

9405

21M→35K

21.0 - 21.8 mi

Top 73%
×7stories
+17ft-86ft

Overall

19332

Females

7573

F40-44

7573

35K→23M

21.8 - 23.0 mi

Top 85%
×5stories
+23ft-63ft

Overall

22544

Females

9347

F40-44

9347

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

21081

Females

8598

F40-44

8598

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21638

Females

8961

F40-44

8961

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20863

Females

8515

F40-44

8515

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

22911

Females

9608

F40-44

9608

Passing Analysis

Category:
Athletes Passed
878
Passed By
2870
Net Change
-1992
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19847
5K → 10K231411-1388#19847#21235
10K → 15K27668-641#21235#21876
15K → 20K108162-54#21876#21930
20K → Half573+54#21930#21876
Half → 25K15543+112#21876#21764
25K → 30K130179-49#21764#21813
30K → 20M8052+28#21813#21785
20M → 21M29119-90#21785#21875
21M → 35K814+77#21875#21798
35K → 23M47101-54#21798#21852
23M → 24M5118+33#21852#21819
24M → 40K4435+9#21819#21810
40K → 25.2M325+27#21810#21783
25.2M → Finish1470-56#21783#21839
TOTALS8782870-1992
📊

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