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BOSTON MARATHON 2024

Karen Klapper

OH

Bib: 20806 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Top 44%
Division (F45-49)
#0 / 1753
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
8:08/mi
25:15
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:36/mi
51:57
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:21/mi
1:17:53
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:35/mi
1:44:33
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:37/mi
1:50:26
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:00/mi
2:12:16
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:43/mi
2:42:27
↑ 181↓ 1480.2%
138 ft elev
20M
9:31/mi
2:55:23
↑ 64↓ 500.2%
148 ft elev
21M
11:34/mi
3:06:57
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:08/mi
3:13:47
↑ 17↓ 861.7%
156 ft elev
23M
9:32/mi
3:25:43
↑ 23↓ 630.6%
116 ft elev
24M
9:37/mi
3:35:20
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:55/mi
3:43:49
↓ 200.3%
20 ft elev
25.2M
11:07/mi
3:47:39
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:28/mi
3:57:18
↑ 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
1:50:268:25 /mi⚡ faster
2nd Half
2:06:529:41 /mi+14.9%
Positive split — 14.9% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:5625:158:0825:15
8:08
-
10K
6.21 mi11:46:3851:578:2226:42
8:36
+0:28
15K
9.32 mi12:12:341:17:538:2125:56
8:21
-0:15
20K
12.43 mi12:39:141:44:338:2526:40
8:35
+0:14
Half
13.11 mi12:45:071:50:268:255:53
8:37
+0:02
25K
15.53 mi13:06:572:12:168:3121:50
9:00
+0:23
30K
18.64 mi13:37:082:42:278:4330:11
9:43
+0:43
20M
20.00 mi13:50:042:55:238:4612:56
9:31
-0:12
21M
21.00 mi14:01:383:06:578:5411:34
11:34
+2:03
35K
21.75 mi14:08:283:13:478:556:50
9:08
-2:26
23M
23.00 mi14:20:243:25:438:5711:56
9:32
+0:24
24M
24.00 mi14:30:013:35:208:589:37
9:37
+0:05
40K
24.85 mi14:38:303:43:499:008:29
9:55
+0:18
25.2M
25.20 mi14:42:203:47:399:023:50
11:07
+1:12
Finish
26.22 mi14:51:593:57:189:039:39
9:28
-1:39

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

8:08 /mi

Average Pace

9:03 /mi

Slowest Pace

11:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

2:12:16

56% of race

Time at Steady Pace

1:29:38

38% of race

Time at Slower Pace

15:24

6% of race

Average Pace: 9:03 /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 mi11:19:5625:158:0825:15
8:08
#15576
10K
6.21 mi11:46:3851:578:2226:42
8:36
#16702
15K
9.32 mi12:12:341:17:538:2125:56
8:21
#16258
20K
12.43 mi12:39:141:44:338:2526:40
8:35
#15906
Half
13.11 mi12:45:071:50:268:255:53
8:37
#15939
25K
15.53 mi13:06:572:12:168:3121:50
9:00
#15827
30K
18.64 mi13:37:082:42:278:4330:11
9:43
#15976
20M
20.00 mi13:50:042:55:238:4612:56
9:31
#15868
21M
21.00 mi14:01:383:06:578:5411:34
11:34
#16077
35K
21.75 mi14:08:283:13:478:556:50
9:08
#15989
23M
23.00 mi14:20:243:25:438:5711:56
9:32
#15845
24M
24.00 mi14:30:013:35:208:589:37
9:37
#15789
40K
24.85 mi14:38:303:43:499:008:29
9:55
#15730
25.2M
25.20 mi14:42:203:47:399:023:50
11:07
#15703
Finish
26.22 mi14:51:593:57:189:039:39
9:28
#15709
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi15576530753071555252935293
10K6.21 mi3.10 mi16702-11265982-6755982-6751781866176617
15K9.32 mi3.11 mi16258+4445706+2765706+2761555252935293
20K12.43 mi3.11 mi15906+3525522+1845522+1841524951615161
Half13.11 mi0.68 mi15939-335547-255547-251643358925892
25K15.53 mi2.42 mi15827+1125506+415506+411554054735473
30K18.64 mi3.11 mi15976-1495658-1525658-1521630561266126
20M20.00 mi1.36 mi15868+1085632+265632+261462354675467
21M21.00 mi1.00 mi16077-2095797-1655797-1651781972427242
35K21.75 mi0.75 mi15989+885769+285769+281399453305330
23M23.00 mi1.25 mi15845+1445728+415728+411367852565256
24M24.00 mi1.00 mi15789+565724+45724+41495659255925
40K24.85 mi0.85 mi15730+595728-45728-41474258925892
25.2M25.20 mi0.35 mi15703+275723+55723+51491259945994
Finish26.22 mi1.02 mi15709-65747-245747-241639767026702

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

15552

Females

5293

F45-49

5293

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

17818

Females

6617

F45-49

6617

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

15552

Females

5293

F45-49

5293

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

15249

Females

5161

F45-49

5161

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

16433

Females

5892

F45-49

5892

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

15540

Females

5473

F45-49

5473

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

16305

Females

6126

F45-49

6126

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

14623

Females

5467

F45-49

5467

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

17819

Females

7242

F45-49

7242

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

13994

Females

5330

F45-49

5330

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

13678

Females

5256

F45-49

5256

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

14956

Females

5925

F45-49

5925

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

14742

Females

5892

F45-49

5892

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

14912

Females

5994

F45-49

5994

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

16397

Females

6702

F45-49

6702

Passing Analysis

Category:
Athletes Passed
2304
Passed By
2437
Net Change
-133
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15576
5K → 10K471173-1126#15576#16702
10K → 15K49854+444#16702#16258
15K → 20K43078+352#16258#15906
20K → Half3063-33#15906#15939
Half → 25K258146+112#15939#15827
25K → 30K195344-149#15827#15976
30K → 20M17264+108#15976#15868
20M → 21M50259-209#15868#16077
21M → 35K10113+88#16077#15989
35K → 23M19652+144#15989#15845
23M → 24M10044+56#15845#15789
24M → 40K10748+59#15789#15730
40K → 25.2M4821+27#15730#15703
25.2M → Finish7278-6#15703#15709
TOTALS23042437-133

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