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BOSTON MARATHON 2024

Kristin Lefler

BC

Bib: 18698 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 49%
Masters (Masters Women)
#0 / 6263
Top 39%
Division (F40-44)
#0 / 1613
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
8:31/mi
26:27
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:34/mi
53:05
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:35/mi
1:19:44
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:48/mi
1:47:04
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:33/mi
1:52:54
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:11/mi
2:15:11
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:28/mi
2:44:35
↑ 181↓ 1480.2%
138 ft elev
20M
9:02/mi
2:56:51
↑ 64↓ 500.2%
148 ft elev
21M
9:24/mi
3:06:15
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:40/mi
3:12:44
↑ 17↓ 861.7%
156 ft elev
23M
9:02/mi
3:24:02
↑ 23↓ 630.6%
116 ft elev
24M
9:27/mi
3:33:29
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:49/mi
3:41:01
↓ 200.3%
20 ft elev
25.2M
10:23/mi
3:44:36
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:24/mi
3:53:10
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:52:548:37 /mi⚡ faster
2nd Half
2:00:169:10 /mi+6.5%
Positive split — 6.5% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
26:278:313.11 mi26:27
8:31
-
10K
53:058:333.10 mi26:38
8:34
+0:03
15K
1:19:448:333.11 mi26:39
8:35
+0:01
20K
1:47:048:373.11 mi27:20
8:48
+0:13
Half(13.11 mi)
1:52:548:370.68 mi5:50
8:33
-0:15
25K
2:15:118:422.42 mi22:17
9:11
+0:38
30K
2:44:358:503.11 mi29:24
9:28
+0:17
20M
2:56:518:511.36 mi12:16
9:02
-0:26
21M
3:06:158:521.00 mi9:24
9:24
+0:22
35K
3:12:448:520.75 mi6:29
8:40
-0:44
23M
3:24:028:521.25 mi11:18
9:02
+0:22
24M
3:33:298:541.00 mi9:27
9:27
+0:25
40K
3:41:018:540.85 mi7:32
8:49
-0:38
25.2M
3:44:368:550.35 mi3:35
10:23
+1:34
Finish(26.22 mi)
3:53:108:541.02 mi8:34
8:24
-1:59
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:24 /mi

Average Pace

8:54 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

40:51

18% of race

Time at Steady Pace

1:58:12

51% of race

Time at Slower Pace

1:14:07

32% of race

Average Pace: 8:54 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi17848666366631683860426042
10K3.10 mi17776+726599+646599+641770965546554
15K3.11 mi17433+3436392+2076392+2071683860426042
20K3.11 mi17065+3686202+1906202+1901638358155815
Half(13.11 mi)0.68 mi16993+726170+326170+321603456435643
25K2.42 mi16839+1546095+756095+751638359325932
30K3.11 mi16543+2965992+1035992+1031532355925592
20M1.36 mi16232+3115849+1435849+1431229341874187
21M1.00 mi15903+3295693+1565693+1561040534443444
35K0.75 mi15753+1505637+565637+561168241294129
23M1.25 mi15472+2815522+1155522+1151133540784078
24M1.00 mi15427+455529-75529-71429055845584
40K0.85 mi15184+2435431+985431+98998735763576
25.2M0.35 mi15111+735407+245407+241248548504850
Finish(26.22 mi)1.02 mi14929+1825339+685339+681103440124012

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

16838

Females

6042

F40-44

6042

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

17709

Females

6554

F40-44

6554

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

16838

Females

6042

F40-44

6042

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

16383

Females

5815

F40-44

5815

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

16034

Females

5643

F40-44

5643

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

16383

Females

5932

F40-44

5932

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

15323

Females

5592

F40-44

5592

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12293

Females

4187

F40-44

4187

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

10405

Females

3444

F40-44

3444

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

11682

Females

4129

F40-44

4129

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

11335

Females

4078

F40-44

4078

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

14290

Females

5584

F40-44

5584

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

9987

Females

3576

F40-44

3576

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

12485

Females

4850

F40-44

4850

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

11034

Females

4012

F40-44

4012

Passing Analysis

Category:
Passed
3660
Passed By
741
Net Change
+2919
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17848
5K → 10K320248+72#17848#17776
10K → 15K42178+343#17776#17433
15K → 20K45284+368#17433#17065
20K → Half775+72#17065#16993
Half → 25K270116+154#16993#16839
25K → 30K400104+296#16839#16543
30K → 20M3143+311#16543#16232
20M → 21M3312+329#16232#15903
21M → 35K1588+150#15903#15753
35K → 23M29615+281#15753#15472
23M → 24M10661+45#15472#15427
24M → 40K2441+243#15427#15184
40K → 25.2M785+73#15184#15111
25.2M → Finish19311+182#15111#14929
TOTALS3660741+2919

Passing Charts

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