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BOSTON MARATHON 2024

Deborah Lazaroff

Bib: 20910•F

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F65-69)
#0 / 216
Top 39%
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
8:37/mi
26:45
↑ 97↓ 3451.5%
10K· 6.21 mi
10:01/mi
57:52
↑ 79↓ 1380.4%
15K· 9.32 mi
10:19/mi
1:29:56
↑ 67↓ 78
20K· 12.43 mi
11:13/mi
2:04:47
↑ 106↓ 860.1%
Half· 13.11 mi
12:07/mi
2:13:03
↑ 19↓ 370.5%
25K· 15.53 mi
10:34/mi
2:38:40
↑ 66↓ 880.2%
30K· 18.64 mi
11:09/mi
3:13:17
↑ 181↓ 1480.2%
20M
10:56/mi
3:28:09
↑ 64↓ 500.2%
21M
12:07/mi
3:40:16
↑ 106↓ 241.6%
35K· 21.75 mi
13:11/mi
3:50:08
↑ 17↓ 861.7%
23M
11:06/mi
4:04:02
↑ 23↓ 630.6%
24M
10:31/mi
4:14:33
↓ 821.3%
40K· 24.85 mi
11:05/mi
4:24:02
↓ 200.3%
25.2M
12:48/mi
4:28:27
↑ 13↓ 160.2%
Finish· 26.22 mi
9:55/mi
4:38:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:13:03
Pace10:09 /mi
2nd Half
Distance13.11 mi
Time2:25:30
Pace11:06 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:5826:458:3726:45
8:37
-
10K
6.21 mi11:55:0557:529:1931:07
10:01
+1:24
15K
9.32 mi12:27:091:29:569:3932:04
10:19
+0:18
20K
12.43 mi13:02:002:04:4710:0234:51
11:13
+0:54
Half
13.11 mi13:10:162:13:0310:098:16
12:07
+0:54
25K
15.53 mi13:35:532:38:4010:1325:37
10:34
-1:33
30K
18.64 mi14:10:303:13:1710:2234:37
11:09
+0:35
20M
20.00 mi14:25:223:28:0910:2414:52
10:56
-0:13
21M
21.00 mi14:37:293:40:1610:2912:07
12:07
+1:11
35K
21.75 mi14:47:213:50:0810:359:52
13:11
+1:04
23M
23.00 mi15:01:154:04:0210:3713:54
11:06
-2:05
24M
24.00 mi15:11:464:14:3310:3610:31
10:31
-0:35
40K
24.85 mi15:21:154:24:0210:379:29
11:05
+0:34
25.2M
25.20 mi15:25:404:28:2710:394:25
12:48
+1:43
Finish
26.22 mi15:35:464:38:3310:3810:06
9:55
-2:53

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

8:37 /mi

Average Pace

10:38 /mi

Slowest Pace

13:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:02

36% of race

Time at Steady Pace

2:23:51

52% of race

Time at Slower Pace

34:40

12% of race

Average Pace: 10:37 /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 mi11:23:5826:458:3726:45
8:37
#18389
10K
6.21 mi11:55:0557:529:1931:07
10:01
#21022
15K
9.32 mi12:27:091:29:569:3932:04
10:19
#21638
20K
12.43 mi13:02:002:04:4710:0234:51
11:13
#22056
Half
13.11 mi13:10:162:13:0310:098:16
12:07
#22300
25K
15.53 mi13:35:532:38:4010:1325:37
10:34
#22003
30K
18.64 mi14:10:303:13:1710:2234:37
11:09
#21678
20M
20.00 mi14:25:223:28:0910:2414:52
10:56
#21457
21M
21.00 mi14:37:293:40:1610:2912:07
12:07
#21330
35K
21.75 mi14:47:213:50:0810:359:52
13:11
#21459
23M
23.00 mi15:01:154:04:0210:3713:54
11:06
#21294
24M
24.00 mi15:11:464:14:3310:3610:31
10:31
#21128
40K
24.85 mi15:21:154:24:0210:379:29
11:05
#21030
25.2M
25.20 mi15:25:404:28:2710:394:25
12:48
#21017
Finish
26.22 mi15:35:464:38:3310:3810:06
9:55
#20904
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF65-69Seg. OverallSeg. FemalesSeg. F65-69
5K3.11 mi3.11 mi183896988698822583(Top 88%)9202(Top 84%)9202(Top 4260%)
10K6.21 mi3.10 mi21022-26338401-14138401-141322598(Top 88%)9229(Top 84%)9229(Top 4273%)
15K9.32 mi3.11 mi21638-6168707-3068707-30622583(Top 88%)9202(Top 84%)9202(Top 4260%)
20K12.43 mi3.11 mi22056-4188939-2328939-23223001(Top 90%)9452(Top 87%)9452(Top 4376%)
Half13.11 mi0.68 mi22300-2449066-1279066-12724658(Top 97%)10426(Top 95%)10426(Top 4827%)
25K15.53 mi2.42 mi22003+2978933+1338933+13320575(Top 81%)8227(Top 75%)8227(Top 3809%)
30K18.64 mi3.11 mi21678+3258806+1278806+12720302(Top 79%)8269(Top 76%)8269(Top 3828%)
20M20.00 mi1.36 mi21457+2218711+958711+9519151(Top 75%)7781(Top 71%)7781(Top 3602%)
21M21.00 mi1.00 mi21330+1278661+508661+5019097(Top 75%)7859(Top 72%)7859(Top 3638%)
35K21.75 mi0.75 mi21459-1298741-808741-8023462(Top 92%)10038(Top 92%)10038(Top 4647%)
23M23.00 mi1.25 mi21294+1658688+538688+5318716(Top 73%)7756(Top 71%)7756(Top 3591%)
24M24.00 mi1.00 mi21128+1668620+688620+6817915(Top 70%)7432(Top 68%)7432(Top 3441%)
40K24.85 mi0.85 mi21030+988578+428578+4218353(Top 72%)7680(Top 70%)7680(Top 3556%)
25.2M25.20 mi0.35 mi21017+138577+18577+119273(Top 75%)8155(Top 75%)8155(Top 3775%)
Finish26.22 mi1.02 mi20904+1138527+508527+5018118(Top 71%)7571(Top 69%)7571(Top 3505%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

22583

Females

9202

F65-69

9202

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

22598

Females

9229

F65-69

9229

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

22583

Females

9202

F65-69

9202

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

23001

Females

9452

F65-69

9452

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

24658

Females

10426

F65-69

10426

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

20575

Females

8227

F65-69

8227

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

20302

Females

8269

F65-69

8269

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

19151

Females

7781

F65-69

7781

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

19097

Females

7859

F65-69

7859

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

23462

Females

10038

F65-69

10038

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

18716

Females

7756

F65-69

7756

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

17915

Females

7432

F65-69

7432

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

18353

Females

7680

F65-69

7680

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

19273

Females

8155

F65-69

8155

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2story building
+22ft-21ft

Overall

18118

Females

7571

F65-69

7571

Passing Analysis

Category:
Athletes Passed
1793
Passed By
4308
Net Change
-2515
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18389
5K → 10K62639-2633#18389#21022
10K → 15K50666-616#21022#21638
15K → 20K64482-418#21638#22056
20K → Half3247-244#22056#22300
Half → 25K31114+297#22300#22003
25K → 30K36843+325#22003#21678
30K → 20M2276+221#21678#21457
20M → 21M14720+127#21457#21330
21M → 35K23152-129#21330#21459
35K → 23M17510+165#21459#21294
23M → 24M1715+166#21294#21128
24M → 40K1068+98#21128#21030
40K → 25.2M2411+13#21030#21017
25.2M → Finish1185+113#21017#20904
TOTALS17934308-2515
📊

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