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BOSTON MARATHON 2024

Karla Lopez

Bib: 19537•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 42%
Gender (Female)
#0 / 10924
Top 28%
Masters (Masters Women)
#0 / 6263
Top 16%
Division (F50-54)
#0 / 1187
Top 10%
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
8:04/mi
25:03
↑ 97↓ 3451.5%
10K· 6.21 mi
7:47/mi
49:15
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:13:14
↑ 67↓ 78
20K· 12.43 mi
7:57/mi
1:37:57
↑ 106↓ 860.1%
Half· 13.11 mi
7:48/mi
1:43:16
↑ 19↓ 370.5%
25K· 15.53 mi
8:03/mi
2:02:47
↑ 66↓ 880.2%
30K· 18.64 mi
9:03/mi
2:30:53
↑ 181↓ 1480.2%
20M
8:20/mi
2:42:13
↑ 64↓ 500.2%
21M
9:04/mi
2:51:17
↑ 106↓ 241.6%
35K· 21.75 mi
8:23/mi
2:57:33
↑ 17↓ 861.7%
23M
8:26/mi
3:08:07
↑ 23↓ 630.6%
24M
8:36/mi
3:16:43
↓ 821.3%
40K· 24.85 mi
8:12/mi
3:23:44
↓ 200.3%
25.2M
9:05/mi
3:26:52
↑ 13↓ 160.2%
Finish· 26.22 mi
7:52/mi
3:34:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:16
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:51:37
Pace8:31 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:1125:038:0425:03
8:04
-
10K
6.21 mi11:49:2349:157:5624:12
7:47
-0:17
15K
9.32 mi12:13:221:13:147:5123:59
7:43
-0:04
20K
12.43 mi12:38:051:37:577:5324:43
7:57
+0:14
Half
13.11 mi12:43:241:43:167:535:19
7:48
-0:09
25K
15.53 mi13:02:552:02:477:5419:31
8:03
+0:15
30K
18.64 mi13:31:012:30:538:0628:06
9:03
+1:00
20M
20.00 mi13:42:212:42:138:0711:20
8:20
-0:43
21M
21.00 mi13:51:252:51:178:099:04
9:04
+0:44
35K
21.75 mi13:57:412:57:338:106:16
8:23
-0:41
23M
23.00 mi14:08:153:08:078:1110:34
8:26
+0:03
24M
24.00 mi14:16:513:16:438:128:36
8:36
+0:10
40K
24.85 mi14:23:523:23:448:127:01
8:12
-0:24
25.2M
25.20 mi14:27:003:26:528:133:08
9:05
+0:53
Finish
26.22 mi14:35:013:34:538:128:01
7:52
-1:13

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

7:43 /mi

Average Pace

8:12 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:59

77% of race

Time at Steady Pace

48:54

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:12 /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 mi11:25:1125:038:0425:03
8:04
#15114
10K
6.21 mi11:49:2349:157:5624:12
7:47
#13862
15K
9.32 mi12:13:221:13:147:5123:59
7:43
#12954
20K
12.43 mi12:38:051:37:577:5324:43
7:57
#12515
Half
13.11 mi12:43:241:43:167:535:19
7:48
#12436
25K
15.53 mi13:02:552:02:477:5419:31
8:03
#12014
30K
18.64 mi13:31:012:30:538:0628:06
9:03
#12315
20M
20.00 mi13:42:212:42:138:0711:20
8:20
#11967
21M
21.00 mi13:51:252:51:178:099:04
9:04
#11711
35K
21.75 mi13:57:412:57:338:106:16
8:23
#11617
23M
23.00 mi14:08:153:08:078:1110:34
8:26
#11300
24M
24.00 mi14:16:513:16:438:128:36
8:36
#11209
40K
24.85 mi14:23:523:23:448:127:01
8:12
#10987
25.2M
25.20 mi14:27:003:26:528:133:08
9:05
#10889
Finish
26.22 mi14:35:013:34:538:128:01
7:52
#10738
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi151145009500911348(Top 44%)2871(Top 26%)2871(Top 242%)
10K6.21 mi3.10 mi13862+12524257+7524257+75212564(Top 49%)3514(Top 32%)3514(Top 296%)
15K9.32 mi3.11 mi12954+9083729+5283729+52811348(Top 44%)2871(Top 26%)2871(Top 242%)
20K12.43 mi3.11 mi12515+4393491+2383491+23811542(Top 45%)3085(Top 28%)3085(Top 260%)
Half13.11 mi0.68 mi12436+793463+283463+2811341(Top 44%)2986(Top 27%)2986(Top 252%)
25K15.53 mi2.42 mi12014+4223266+1973266+19710529(Top 41%)2744(Top 25%)2744(Top 231%)
30K18.64 mi3.11 mi12315-3013528-2623528-26213443(Top 53%)4530(Top 41%)4530(Top 382%)
20M20.00 mi1.36 mi11967+3483390+1383390+1388616(Top 34%)2288(Top 21%)2288(Top 193%)
21M21.00 mi1.00 mi11711+2563312+783312+788919(Top 35%)2651(Top 24%)2651(Top 223%)
35K21.75 mi0.75 mi11617+943293+193293+1910036(Top 39%)3246(Top 30%)3246(Top 273%)
23M23.00 mi1.25 mi11300+3173193+1003193+1008166(Top 32%)2470(Top 23%)2470(Top 208%)
24M24.00 mi1.00 mi11209+913196-33196-310051(Top 39%)3463(Top 32%)3463(Top 292%)
40K24.85 mi0.85 mi10987+2223123+733123+736867(Top 27%)2069(Top 19%)2069(Top 174%)
25.2M25.20 mi0.35 mi10889+983098+253098+257018(Top 27%)2198(Top 20%)2198(Top 185%)
Finish26.22 mi1.02 mi10738+1513063+353063+357760(Top 30%)2458(Top 23%)2458(Top 207%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11348

Females

2871

F50-54

2871

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

12564

Females

3514

F50-54

3514

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11348

Females

2871

F50-54

2871

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

11542

Females

3085

F50-54

3085

20K→Half

12.4 - 13.1 mi

Top 44%
×2story building
+19ft-37ft

Overall

11341

Females

2986

F50-54

2986

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10529

Females

2744

F50-54

2744

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

13443

Females

4530

F50-54

4530

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

8616

Females

2288

F50-54

2288

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

8919

Females

2651

F50-54

2651

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10036

Females

3246

F50-54

3246

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

8166

Females

2470

F50-54

2470

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

10051

Females

3463

F50-54

3463

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

6867

Females

2069

F50-54

2069

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7018

Females

2198

F50-54

2198

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

7760

Females

2458

F50-54

2458

Passing Analysis

Category:
Athletes Passed
5197
Passed By
821
Net Change
+4376
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15114
5K → 10K127523+1252#15114#13862
10K → 15K9135+908#13862#12954
15K → 20K50162+439#12954#12515
20K → Half9011+79#12515#12436
Half → 25K47149+422#12436#12014
25K → 30K211512-301#12014#12315
30K → 20M3568+348#12315#11967
20M → 21M28428+256#11967#11711
21M → 35K11824+94#11711#11617
35K → 23M33114+317#11617#11300
23M → 24M14857+91#11300#11209
24M → 40K2319+222#11209#10987
40K → 25.2M1035+98#10987#10889
25.2M → Finish16514+151#10889#10738
TOTALS5197821+4376
📊

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