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BOSTON MARATHON 2023

Leslie Randall

Bib: 29748•F

OR

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:47/mi
30:24
↑ 97↓ 3451.5%
10K· 6.21 mi
9:54/mi
1:01:08
↑ 79↓ 1380.4%
15K· 9.32 mi
9:52/mi
1:31:47
↑ 67↓ 78
20K· 12.43 mi
10:03/mi
2:03:01
↑ 106↓ 860.1%
Half· 13.11 mi
10:01/mi
2:09:51
↑ 19↓ 370.5%
25K· 15.53 mi
10:13/mi
2:34:38
↑ 66↓ 880.2%
30K· 18.64 mi
10:47/mi
3:08:07
↑ 181↓ 1480.2%
20M
10:42/mi
3:22:39
↑ 64↓ 500.2%
21M
11:24/mi
3:34:03
↑ 106↓ 241.6%
35K· 21.75 mi
10:10/mi
3:41:39
↑ 17↓ 861.7%
23M
10:36/mi
3:54:55
↑ 23↓ 630.6%
24M
9:54/mi
4:04:49
↓ 821.3%
40K· 24.85 mi
10:29/mi
4:13:47
↓ 200.3%
25.2M
11:16/mi
4:17:40
↑ 13↓ 160.2%
Finish· 26.22 mi
9:45/mi
4:27:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:51
Pace9:54 /mi
2nd Half
Distance13.11 mi
Time2:17:45
Pace10:30 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:5230:249:4730:24
9:47
-
10K
6.21 mi12:20:361:01:089:5030:44
9:54
+0:07
15K
9.32 mi12:51:151:31:479:5130:39
9:52
-0:02
20K
12.43 mi13:22:292:03:019:5431:14
10:03
+0:11
Half
13.11 mi13:29:192:09:519:546:50
10:01
-0:02
25K
15.53 mi13:54:062:34:389:5724:47
10:13
+0:12
30K
18.64 mi14:27:353:08:0710:0533:29
10:47
+0:34
20M
20.00 mi14:42:073:22:3910:0814:32
10:42
-0:05
21M
21.00 mi14:53:313:34:0310:1211:24
11:24
+0:42
35K
21.75 mi15:01:073:41:3910:127:36
10:10
-1:14
23M
23.00 mi15:14:233:54:5510:1313:16
10:36
+0:26
24M
24.00 mi15:24:174:04:4910:129:54
9:54
-0:42
40K
24.85 mi15:33:154:13:4710:138:58
10:29
+0:35
25.2M
25.20 mi15:37:084:17:4010:133:53
11:16
+0:47
Finish
26.22 mi15:47:044:27:3610:139:56
9:45
-1:31

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

9:45 /mi

Average Pace

10:13 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:38:50

82% of race

Time at Steady Pace

48:46

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:12 /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 mi11:49:5230:249:4730:24
9:47
#22875
10K
6.21 mi12:20:361:01:089:5030:44
9:54
#23250
15K
9.32 mi12:51:151:31:479:5130:39
9:52
#23254
20K
12.43 mi13:22:292:03:019:5431:14
10:03
#23187
Half
13.11 mi13:29:192:09:519:546:50
10:01
#23200
25K
15.53 mi13:54:062:34:389:5724:47
10:13
#23074
30K
18.64 mi14:27:353:08:0710:0533:29
10:47
#23023
20M
20.00 mi14:42:073:22:3910:0814:32
10:42
#22935
21M
21.00 mi14:53:313:34:0310:1211:24
11:24
#22873
35K
21.75 mi15:01:073:41:3910:127:36
10:10
#22829
23M
23.00 mi15:14:233:54:5510:1313:16
10:36
#22737
24M
24.00 mi15:24:174:04:4910:129:54
9:54
#22635
40K
24.85 mi15:33:154:13:4710:138:58
10:29
#22602
25.2M
25.20 mi15:37:084:17:4010:133:53
11:16
#22579
Finish
26.22 mi15:47:044:27:3610:139:56
9:45
#22532
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi228759316931623221(Top 87%)9457(Top 83%)9457(Top 784%)
10K6.21 mi3.10 mi23250-3759505-1899505-18923467(Top 88%)9604(Top 84%)9604(Top 796%)
15K9.32 mi3.11 mi23254-49488+179488+1723221(Top 87%)9457(Top 83%)9457(Top 784%)
20K12.43 mi3.11 mi23187+679451+379451+3723031(Top 87%)9362(Top 82%)9362(Top 776%)
Half13.11 mi0.68 mi23200-139455-49455-423308(Top 88%)9517(Top 83%)9517(Top 788%)
25K15.53 mi2.42 mi23074+1269397+589397+5822669(Top 85%)9204(Top 81%)9204(Top 763%)
30K18.64 mi3.11 mi23023+519392+59392+522748(Top 85%)9324(Top 82%)9324(Top 772%)
20M20.00 mi1.36 mi22935+889365+279365+2722148(Top 83%)9064(Top 79%)9064(Top 751%)
21M21.00 mi1.00 mi22873+629339+269339+2621702(Top 82%)8833(Top 77%)8833(Top 732%)
35K21.75 mi0.75 mi22829+449323+169323+1621696(Top 81%)8882(Top 78%)8882(Top 736%)
23M23.00 mi1.25 mi22737+929289+349289+3421560(Top 81%)8824(Top 77%)8824(Top 731%)
24M24.00 mi1.00 mi22635+1029239+509239+5020530(Top 77%)8284(Top 73%)8284(Top 686%)
40K24.85 mi0.85 mi22602+339229+109229+1021200(Top 80%)8728(Top 76%)8728(Top 723%)
25.2M25.20 mi0.35 mi22579+239219+109219+1021079(Top 79%)8638(Top 76%)8638(Top 716%)
Finish26.22 mi1.02 mi22532+479205+149205+1420994(Top 79%)8563(Top 75%)8563(Top 709%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23221

Females

9457

F50-54

9457

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

23467

Females

9604

F50-54

9604

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23221

Females

9457

F50-54

9457

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

23031

Females

9362

F50-54

9362

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

23308

Females

9517

F50-54

9517

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

22669

Females

9204

F50-54

9204

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

22748

Females

9324

F50-54

9324

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

22148

Females

9064

F50-54

9064

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

21702

Females

8833

F50-54

8833

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

21696

Females

8882

F50-54

8882

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

21560

Females

8824

F50-54

8824

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

20530

Females

8284

F50-54

8284

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21200

Females

8728

F50-54

8728

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21079

Females

8638

F50-54

8638

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

20994

Females

8563

F50-54

8563

Passing Analysis

Category:
Athletes Passed
1301
Passed By
958
Net Change
+343
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22875
5K → 10K88463-375#22875#23250
10K → 15K138142-4#23250#23254
15K → 20K14780+67#23254#23187
20K → Half2235-13#23187#23200
Half → 25K17347+126#23200#23074
25K → 30K14695+51#23074#23023
30K → 20M11224+88#23023#22935
20M → 21M8220+62#22935#22873
21M → 35K5410+44#22873#22829
35K → 23M10311+92#22829#22737
23M → 24M1042+102#22737#22635
24M → 40K4310+33#22635#22602
40K → 25.2M274+23#22602#22579
25.2M → Finish6215+47#22579#22532
TOTALS1301958+343
📊

Passing Visuals

Category:
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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