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BOSTON MARATHON 2024

Sarah Leff

IL

Bib: 10529 F

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 30%
Gender (Female)
#0 / 10924
Top 15%
Division (F18-39)
#0 / 4660
Top 27%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:15/mi
22:31
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:33/mi
45:57
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:45/mi
1:10:01
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:47/mi
1:34:11
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:34/mi
1:39:21
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:54/mi
1:58:31
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:03/mi
2:23:32
↑ 181↓ 1480.2%
138 ft elev
20M
8:06/mi
2:34:32
↑ 64↓ 500.2%
148 ft elev
21M
8:26/mi
2:42:58
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:45/mi
2:48:46
↑ 17↓ 861.7%
156 ft elev
23M
7:58/mi
2:58:44
↑ 23↓ 630.6%
116 ft elev
24M
7:45/mi
3:06:29
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:49/mi
3:13:10
↓ 200.3%
20 ft elev
25.2M
8:33/mi
3:16:07
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:07/mi
3:23:22
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:21
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:44:01
Pace7:56 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:5222:317:1522:31
7:15
-
10K
6.21 mi11:12:1845:577:2423:26
7:33
+0:18
15K
9.32 mi11:36:221:10:017:3124:04
7:45
+0:12
20K
12.43 mi12:00:321:34:117:3524:10
7:47
+0:02
Half
13.11 mi12:05:421:39:217:355:10
7:34
-0:13
25K
15.53 mi12:24:521:58:317:3819:10
7:54
+0:20
30K
18.64 mi12:49:532:23:327:4225:01
8:03
+0:09
20M
20.00 mi13:00:532:34:327:4411:00
8:06
+0:03
21M
21.00 mi13:09:192:42:587:468:26
8:26
+0:20
35K
21.75 mi13:15:072:48:467:465:48
7:45
-0:41
23M
23.00 mi13:25:052:58:447:469:58
7:58
+0:13
24M
24.00 mi13:32:503:06:297:467:45
7:45
-0:13
40K
24.85 mi13:39:313:13:107:466:41
7:49
+0:04
25.2M
25.20 mi13:42:283:16:077:472:57
8:33
+0:44
Finish
26.22 mi13:49:433:23:227:467:15
7:07
-1:26

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

7:07 /mi

Average Pace

7:46 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

58:22

29% of race

Time at Steady Pace

1:37:36

48% of race

Time at Slower Pace

47:24

23% of race

Average Pace: 7:45 /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 mi10:48:5222:317:1522:31
7:15
#8792
10K
6.21 mi11:12:1845:577:2423:26
7:33
#9609
15K
9.32 mi11:36:221:10:017:3124:04
7:45
#10278
20K
12.43 mi12:00:321:34:117:3524:10
7:47
#10237
Half
13.11 mi12:05:421:39:217:355:10
7:34
#10196
25K
15.53 mi12:24:521:58:317:3819:10
7:54
#9999
30K
18.64 mi12:49:532:23:327:4225:01
8:03
#9542
20M
20.00 mi13:00:532:34:327:4411:00
8:06
#9280
21M
21.00 mi13:09:192:42:587:468:26
8:26
#8971
35K
21.75 mi13:15:072:48:467:465:48
7:45
#8820
23M
23.00 mi13:25:052:58:447:469:58
7:58
#8525
24M
24.00 mi13:32:503:06:297:467:45
7:45
#8311
40K
24.85 mi13:39:313:13:107:466:41
7:49
#8122
25.2M
25.20 mi13:42:283:16:077:472:57
8:33
#8019
Finish
26.22 mi13:49:433:23:227:467:15
7:07
#7739
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi87921490149011530(Top 45%)2973(Top 27%)2973(Top 64%)
10K6.21 mi3.10 mi9609-8171874-3841874-38410620(Top 42%)2427(Top 22%)2427(Top 52%)
15K9.32 mi3.11 mi10278-6692229-3552229-35511530(Top 45%)2973(Top 27%)2973(Top 64%)
20K12.43 mi3.11 mi10237+412274-452274-4510279(Top 40%)2470(Top 23%)2470(Top 53%)
Half13.11 mi0.68 mi10196+412262+122262+129677(Top 38%)2132(Top 20%)2132(Top 46%)
25K15.53 mi2.42 mi9999+1972214+482214+489567(Top 37%)2265(Top 21%)2265(Top 49%)
30K18.64 mi3.11 mi9542+4572079+1352079+1358169(Top 32%)1840(Top 17%)1840(Top 39%)
20M20.00 mi1.36 mi9280+2622005+742005+747300(Top 29%)1672(Top 15%)1672(Top 36%)
21M21.00 mi1.00 mi8971+3091928+771928+775954(Top 23%)1285(Top 12%)1285(Top 28%)
35K21.75 mi0.75 mi8820+1511888+401888+406384(Top 25%)1470(Top 13%)1470(Top 32%)
23M23.00 mi1.25 mi8525+2951819+691819+695570(Top 22%)1261(Top 12%)1261(Top 27%)
24M24.00 mi1.00 mi8311+2141770+491770+495316(Top 21%)1221(Top 11%)1221(Top 26%)
40K24.85 mi0.85 mi8122+1891732+381732+384889(Top 19%)1148(Top 11%)1148(Top 25%)
25.2M25.20 mi0.35 mi8019+1031706+261706+264743(Top 19%)1143(Top 10%)1143(Top 25%)
Finish26.22 mi1.02 mi7739+2801625+811625+813669(Top 14%)680(Top 6%)680(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

11530

Females

2973

F18-39

2973

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

10620

Females

2427

F18-39

2427

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

11530

Females

2973

F18-39

2973

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

10279

Females

2470

F18-39

2470

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

9677

Females

2132

F18-39

2132

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9567

Females

2265

F18-39

2265

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

8169

Females

1840

F18-39

1840

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

7300

Females

1672

F18-39

1672

20M→21M

20.0 - 21.0 mi

Top 23%
×8story building
+106ft-24ft

Overall

5954

Females

1285

F18-39

1285

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

6384

Females

1470

F18-39

1470

35K→23M

21.8 - 23.0 mi

Top 22%
×5story building
+23ft-63ft

Overall

5570

Females

1261

F18-39

1261

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

5316

Females

1221

F18-39

1221

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

4889

Females

1148

F18-39

1148

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

4743

Females

1143

F18-39

1143

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2story building
+22ft-21ft

Overall

3669

Females

680

F18-39

680

Passing Analysis

Category:
Athletes Passed
2311
Passed By
1910
Net Change
+399
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8792
5K → 10K69886-817#8792#9609
10K → 15K51718-669#9609#10278
15K → 20K253212+41#10278#10237
20K → Half5817+41#10237#10196
30K → 20M28422+262#9542#9280
20M → 21M3178+309#9280#8971
21M → 35K1609+151#8971#8820
35K → 23M30914+295#8820#8525
23M → 24M22410+214#8525#8311
24M → 40K1989+189#8311#8122
40K → 25.2M1052+103#8122#8019
25.2M → Finish2833+280#8019#7739
TOTALS23111910+399
📊

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