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BOSTON MARATHON 2023

Leah Segal

Bib: 26484•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
31:16
Rank: #23592
Start → 5K
31:16 | 10:04/mi
10K· 6.21 mi
1:02:55
Rank: #23902 (-310)
5K → 10K
31:39 | 10:11/mi
15K· 9.32 mi
1:35:18
Rank: #24068 (-166)
10K → 15K
32:23 | 10:25/mi
20K· 12.43 mi
2:10:56
Rank: #24481 (-413)
15K → 20K
35:38 | 11:28/mi
Half· 13.11 mi
2:17:51
Rank: #24431 (+50)
20K → Half
6:55 | 10:08/mi
25K· 15.53 mi
2:45:22
Rank: #24444 (-13)
Half → 25K
27:31 | 11:21/mi
30K· 18.64 mi
3:22:35
Rank: #24469 (-25)
25K → 30K
37:13 | 11:59/mi
20M
3:39:31
Rank: #24494 (-25)
30K → 20M
16:56 | 12:28/mi
21M
3:51:41
Rank: #24416 (+78)
20M → 21M
12:10 | 12:10/mi
35K· 21.75 mi
3:59:51
Rank: #24365 (+51)
21M → 35K
8:10 | 10:55/mi
23M
4:14:33
Rank: #24333 (+32)
35K → 23M
14:42 | 11:44/mi
24M
4:24:53
Rank: #24243 (+90)
23M → 24M
10:20 | 10:20/mi
40K· 24.85 mi
4:33:50
Rank: #24133 (+110)
24M → 40K
8:57 | 10:28/mi
25.2M
4:37:38
Rank: #24090 (+43)
40K → 25.2M
3:48 | 11:01/mi
Finish· 26.22 mi
4:47:16
Rank: #24010 (+80)
25.2M → Finish
9:38 | 9:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:17:51
Pace10:31 /mi
2nd Half
Distance13.11 mi
Time2:29:25
Pace11:24 /mi
📊Positive Split: 8.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:4131:1610:0431:16
10:04
-
10K
6.21 mi12:25:201:02:5510:0831:39
10:11
+0:07
15K
9.32 mi12:57:431:35:1810:1332:23
10:25
+0:14
20K
12.43 mi13:33:212:10:5610:3235:38
11:28
+1:03
Half
13.11 mi13:40:162:17:5110:316:55
10:08
-1:20
25K
15.53 mi14:07:472:45:2210:3927:31
11:21
+1:13
30K
18.64 mi14:45:003:22:3510:5237:13
11:59
+0:38
20M
20.00 mi15:01:563:39:3110:5916:56
12:28
+0:29
21M
21.00 mi15:14:063:51:4111:0212:10
12:10
-0:18
35K
21.75 mi15:22:163:59:5111:028:10
10:55
-1:15
23M
23.00 mi15:36:584:14:3311:0414:42
11:44
+0:49
24M
24.00 mi15:47:184:24:5311:0210:20
10:20
-1:24
40K
24.85 mi15:56:154:33:5011:018:57
10:28
+0:08
25.2M
25.20 mi16:00:034:37:3811:013:48
11:01
+0:33
Finish
26.22 mi16:09:414:47:1610:589:38
9:27
-1:34

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

9:27 /mi

Average Pace

10:58 /mi

Slowest Pace

12:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:08

46% of race

Time at Steady Pace

11:58

4% of race

Time at Slower Pace

2:24:10

50% of race

Average Pace: 10:57 /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 mi11:53:4131:1610:0431:16
10:04
#23592
10K
6.21 mi12:25:201:02:5510:0831:39
10:11
#23902
15K
9.32 mi12:57:431:35:1810:1332:23
10:25
#24068
20K
12.43 mi13:33:212:10:5610:3235:38
11:28
#24481
Half
13.11 mi13:40:162:17:5110:316:55
10:08
#24431
25K
15.53 mi14:07:472:45:2210:3927:31
11:21
#24444
30K
18.64 mi14:45:003:22:3510:5237:13
11:59
#24469
20M
20.00 mi15:01:563:39:3110:5916:56
12:28
#24494
21M
21.00 mi15:14:063:51:4111:0212:10
12:10
#24416
35K
21.75 mi15:22:163:59:5111:028:10
10:55
#24365
23M
23.00 mi15:36:584:14:3311:0414:42
11:44
#24333
24M
24.00 mi15:47:184:24:5311:0210:20
10:20
#24243
40K
24.85 mi15:56:154:33:5011:018:57
10:28
#24133
25.2M
25.20 mi16:00:034:37:3811:013:48
11:01
#24090
Finish
26.22 mi16:09:414:47:1610:589:38
9:27
#24010
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi235929697969724326(Top 91%)10071(Top 88%)10071(Top 206%)
10K6.21 mi3.10 mi23902-3109840-1439840-14324105(Top 91%)9947(Top 87%)9947(Top 204%)
15K9.32 mi3.11 mi24068-1669929-899929-8924326(Top 91%)10071(Top 88%)10071(Top 206%)
20K12.43 mi3.11 mi24481-41310162-23310162-23325208(Top 95%)10604(Top 93%)10604(Top 217%)
Half13.11 mi0.68 mi24431+5010136+2610136+2623574(Top 89%)9670(Top 85%)9670(Top 198%)
25K15.53 mi2.42 mi24444-1310157-2110157-2124474(Top 92%)10214(Top 89%)10214(Top 209%)
30K18.64 mi3.11 mi24469-2510186-2910186-2924472(Top 92%)10261(Top 90%)10261(Top 210%)
20M20.00 mi1.36 mi24494-2510210-2410210-2424702(Top 93%)10446(Top 91%)10446(Top 214%)
21M21.00 mi1.00 mi24416+7810175+3510175+3523003(Top 86%)9556(Top 84%)9556(Top 196%)
35K21.75 mi0.75 mi24365+5110154+2110154+2123165(Top 87%)9679(Top 85%)9679(Top 198%)
23M23.00 mi1.25 mi24333+3210147+710147+723639(Top 89%)9925(Top 87%)9925(Top 203%)
24M24.00 mi1.00 mi24243+9010104+4310104+4321649(Top 81%)8921(Top 78%)8921(Top 183%)
40K24.85 mi0.85 mi24133+11010053+5110053+5121161(Top 79%)8708(Top 76%)8708(Top 178%)
25.2M25.20 mi0.35 mi24090+4310033+2010033+2020566(Top 77%)8368(Top 73%)8368(Top 171%)
Finish26.22 mi1.02 mi24010+809983+509983+5019988(Top 75%)8001(Top 70%)8001(Top 164%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21stories
+97ft-345ft

Overall

24326

Females

10071

F18-39

10071

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

24105

Females

9947

F18-39

9947

10K→15K

6.2 - 9.3 mi

Top 91%
×3stories
+67ft-78ft

Overall

24326

Females

10071

F18-39

10071

15K→20K

9.3 - 12.4 mi

Top 95%
×5stories
+106ft-86ft

Overall

25208

Females

10604

F18-39

10604

20K→Half

12.4 - 13.1 mi

Top 89%
×2stories
+19ft-37ft

Overall

23574

Females

9670

F18-39

9670

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

24474

Females

10214

F18-39

10214

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

24472

Females

10261

F18-39

10261

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

24702

Females

10446

F18-39

10446

20M→21M

20.0 - 21.0 mi

Top 86%
×8stories
+106ft-24ft

Overall

23003

Females

9556

F18-39

9556

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

23165

Females

9679

F18-39

9679

35K→23M

21.8 - 23.0 mi

Top 89%
×5stories
+23ft-63ft

Overall

23639

Females

9925

F18-39

9925

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

21649

Females

8921

F18-39

8921

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

21161

Females

8708

F18-39

8708

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

20566

Females

8368

F18-39

8368

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2stories
+22ft-21ft

Overall

19988

Females

8001

F18-39

8001

Passing Analysis

Category:
Athletes Passed
955
Passed By
1373
Net Change
-418
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23592
5K → 10K86396-310#23592#23902
10K → 15K62228-166#23902#24068
15K → 20K23436-413#24068#24481
20K → Half533+50#24481#24431
Half → 25K7790-13#24431#24444
25K → 30K99124-25#24444#24469
30K → 20M3358-25#24469#24494
20M → 21M8810+78#24494#24416
21M → 35K587+51#24416#24365
35K → 23M5018+32#24365#24333
23M → 24M900+90#24333#24243
24M → 40K1100+110#24243#24133
40K → 25.2M441+43#24133#24090
25.2M → Finish822+80#24090#24010
TOTALS9551373-418
📊

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