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BOSTON MARATHON 2024

Chelsey Topping

Bib: 14292•F

AB

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 30%
Gender (Female)
#0 / 10924
Top 15%
Masters (Masters Women)
#0 / 6263
Top 6%
Division (F40-44)
#0 / 1613
Top 13%
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
7:36/mi
23:36
↑ 97↓ 3451.5%
10K· 6.21 mi
7:46/mi
47:45
↑ 79↓ 1380.4%
15K· 9.32 mi
7:42/mi
1:11:40
↑ 67↓ 78
20K· 12.43 mi
7:45/mi
1:35:44
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:40:56
↑ 19↓ 370.5%
25K· 15.53 mi
7:38/mi
1:59:26
↑ 66↓ 880.2%
30K· 18.64 mi
7:51/mi
2:23:50
↑ 181↓ 1480.2%
20M
7:51/mi
2:34:30
↑ 64↓ 500.2%
21M
8:21/mi
2:42:51
↑ 106↓ 241.6%
35K· 21.75 mi
7:22/mi
2:48:22
↑ 17↓ 861.7%
23M
7:45/mi
2:58:04
↑ 23↓ 630.6%
24M
7:20/mi
3:05:24
↓ 821.3%
40K· 24.85 mi
7:45/mi
3:12:02
↓ 200.3%
25.2M
8:54/mi
3:15:06
↑ 13↓ 160.2%
Finish· 26.22 mi
7:55/mi
3:23:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:56
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:42:14
Pace7:48 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:0923:367:3623:36
7:36
-
10K
6.21 mi11:19:1847:457:4124:09
7:46
+0:10
15K
9.32 mi11:43:131:11:407:4123:55
7:42
-0:04
20K
12.43 mi12:07:171:35:447:4224:04
7:45
+0:03
Half
13.11 mi12:12:291:40:567:425:12
7:37
-0:08
25K
15.53 mi12:30:591:59:267:4118:30
7:38
+0:01
30K
18.64 mi12:55:232:23:507:4324:24
7:51
+0:13
20M
20.00 mi13:06:032:34:307:4310:40
7:51
0:00
21M
21.00 mi13:14:242:42:517:458:21
8:21
+0:30
35K
21.75 mi13:19:552:48:227:455:31
7:22
-0:59
23M
23.00 mi13:29:372:58:047:459:42
7:45
+0:23
24M
24.00 mi13:36:573:05:247:447:20
7:20
-0:25
40K
24.85 mi13:43:353:12:027:446:38
7:45
+0:25
25.2M
25.20 mi13:46:393:15:067:453:04
8:54
+1:09
Finish
26.22 mi13:54:433:23:107:458:04
7:55
-0:59

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

7:20 /mi

Average Pace

7:45 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

12:51

6% of race

Time at Steady Pace

2:58:54

88% of race

Time at Slower Pace

11:25

6% 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 mi10:55:0923:367:3623:36
7:36
#11514
10K
6.21 mi11:19:1847:457:4124:09
7:46
#11955
15K
9.32 mi11:43:131:11:407:4123:55
7:42
#11654
20K
12.43 mi12:07:171:35:447:4224:04
7:45
#11180
Half
13.11 mi12:12:291:40:567:425:12
7:37
#11117
25K
15.53 mi12:30:591:59:267:4118:30
7:38
#10444
30K
18.64 mi12:55:232:23:507:4324:24
7:51
#9651
20M
20.00 mi13:06:032:34:307:4310:40
7:51
#9267
21M
21.00 mi13:14:242:42:517:458:21
8:21
#8931
35K
21.75 mi13:19:552:48:227:455:31
7:22
#8695
23M
23.00 mi13:29:372:58:047:459:42
7:45
#8330
24M
24.00 mi13:36:573:05:247:447:20
7:20
#8006
40K
24.85 mi13:43:353:12:027:446:38
7:45
#7798
25.2M
25.20 mi13:46:393:15:067:453:04
8:54
#7731
Finish
26.22 mi13:54:433:23:107:458:04
7:55
#7696
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi115142855285511182(Top 44%)2772(Top 25%)2772(Top 172%)
10K6.21 mi3.10 mi11955-4413144-2893144-28912435(Top 49%)3428(Top 31%)3428(Top 213%)
15K9.32 mi3.11 mi11654+3013009+1353009+13511182(Top 44%)2772(Top 25%)2772(Top 172%)
20K12.43 mi3.11 mi11180+4742763+2462763+24610062(Top 39%)2350(Top 22%)2350(Top 146%)
Half13.11 mi0.68 mi11117+632733+302733+3010016(Top 39%)2288(Top 21%)2288(Top 142%)
25K15.53 mi2.42 mi10444+6732436+2972436+2977839(Top 31%)1491(Top 14%)1491(Top 92%)
30K18.64 mi3.11 mi9651+7932132+3042132+3047038(Top 28%)1376(Top 13%)1376(Top 85%)
20M20.00 mi1.36 mi9267+3841997+1351997+1355996(Top 23%)1137(Top 10%)1137(Top 70%)
21M21.00 mi1.00 mi8931+3361913+841913+845564(Top 22%)1109(Top 10%)1109(Top 69%)
35K21.75 mi0.75 mi8695+2361832+811832+814534(Top 18%)709(Top 6%)709(Top 44%)
23M23.00 mi1.25 mi8330+3651728+1041728+1044591(Top 18%)841(Top 8%)841(Top 52%)
24M24.00 mi1.00 mi8006+3241623+1051623+1053511(Top 14%)520(Top 5%)520(Top 32%)
40K24.85 mi0.85 mi7798+2081574+491574+494604(Top 18%)1032(Top 9%)1032(Top 64%)
25.2M25.20 mi0.35 mi7731+671576-21576-26104(Top 24%)1760(Top 16%)1760(Top 109%)
Finish26.22 mi1.02 mi7696+351607-311607-318047(Top 31%)2599(Top 24%)2599(Top 161%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11182

Females

2772

F40-44

2772

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

12435

Females

3428

F40-44

3428

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11182

Females

2772

F40-44

2772

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10062

Females

2350

F40-44

2350

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10016

Females

2288

F40-44

2288

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

7839

Females

1491

F40-44

1491

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7038

Females

1376

F40-44

1376

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

5996

Females

1137

F40-44

1137

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

5564

Females

1109

F40-44

1109

21M→35K

21.0 - 21.8 mi

Top 18%
×7story building
+17ft-86ft

Overall

4534

Females

709

F40-44

709

35K→23M

21.8 - 23.0 mi

Top 18%
×5story building
+23ft-63ft

Overall

4591

Females

841

F40-44

841

23M→24M

23.0 - 24.0 mi

Top 14%
×6story building
+12ft-82ft

Overall

3511

Females

520

F40-44

520

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4604

Females

1032

F40-44

1032

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6104

Females

1760

F40-44

1760

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8047

Females

2599

F40-44

2599

Passing Analysis

Category:
Athletes Passed
4657
Passed By
839
Net Change
+3818
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11514
5K → 10K142583-441#11514#11955
10K → 15K39392+301#11955#11654
15K → 20K50733+474#11654#11180
20K → Half729+63#11180#11117
Half → 25K6752+673#11117#10444
25K → 30K80613+793#10444#9651
30K → 20M3917+384#9651#9267
20M → 21M34610+336#9267#8931
21M → 35K2360+236#8931#8695
35K → 23M3672+365#8695#8330
23M → 24M3251+324#8330#8006
24M → 40K2168+208#8006#7798
40K → 25.2M8114+67#7798#7731
25.2M → Finish10065+35#7731#7696
TOTALS4657839+3818
📊

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