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BOSTON MARATHON 2024

Karen Mcelroy

Bib: 19608•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 46%
Masters (Masters Women)
#0 / 6263
Top 35%
Division (F45-49)
#0 / 1753
Top 45%
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
8:13/mi
25:32
↑ 97↓ 3451.5%
10K· 6.21 mi
8:21/mi
51:27
↑ 79↓ 1380.4%
15K· 9.32 mi
8:09/mi
1:16:45
↑ 67↓ 78
20K· 12.43 mi
8:42/mi
1:43:46
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:49:10
↑ 19↓ 370.5%
25K· 15.53 mi
8:22/mi
2:09:27
↑ 66↓ 880.2%
30K· 18.64 mi
8:49/mi
2:36:52
↑ 181↓ 1480.2%
20M
9:52/mi
2:50:17
↑ 64↓ 500.2%
21M
9:54/mi
3:00:11
↑ 106↓ 241.6%
35K· 21.75 mi
9:41/mi
3:07:26
↑ 17↓ 861.7%
23M
9:29/mi
3:19:19
↑ 23↓ 630.6%
24M
9:30/mi
3:28:49
↓ 821.3%
40K· 24.85 mi
10:02/mi
3:37:24
↓ 200.3%
25.2M
10:38/mi
3:41:04
↑ 13↓ 160.2%
Finish· 26.22 mi
8:58/mi
3:50:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:10
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time2:01:02
Pace9:14 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:5825:328:1325:32
8:13
-
10K
6.21 mi11:44:5351:278:1725:55
8:21
+0:08
15K
9.32 mi12:10:111:16:458:1425:18
8:09
-0:12
20K
12.43 mi12:37:121:43:468:2127:01
8:42
+0:33
Half
13.11 mi12:42:361:49:108:205:24
7:55
-0:47
25K
15.53 mi13:02:532:09:278:2020:17
8:22
+0:27
30K
18.64 mi13:30:182:36:528:2527:25
8:49
+0:27
20M
20.00 mi13:43:432:50:178:3113:25
9:52
+1:03
21M
21.00 mi13:53:373:00:118:359:54
9:54
+0:02
35K
21.75 mi14:00:523:07:268:377:15
9:41
-0:13
23M
23.00 mi14:12:453:19:198:4011:53
9:29
-0:12
24M
24.00 mi14:22:153:28:498:429:30
9:30
+0:01
40K
24.85 mi14:30:503:37:248:458:35
10:02
+0:32
25.2M
25.20 mi14:34:303:41:048:463:40
10:38
+0:36
Finish
26.22 mi14:43:383:50:128:479:08
8:58
-1:40

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

7:55 /mi

Average Pace

8:47 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:26

44% of race

Time at Steady Pace

1:03:34

28% of race

Time at Slower Pace

1:04:12

28% of race

Average Pace: 8:47 /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 mi11:18:5825:328:1325:32
8:13
#16162
10K
6.21 mi11:44:5351:278:1725:55
8:21
#16229
15K
9.32 mi12:10:111:16:458:1425:18
8:09
#15556
20K
12.43 mi12:37:121:43:468:2127:01
8:42
#15563
Half
13.11 mi12:42:361:49:108:205:24
7:55
#15395
25K
15.53 mi13:02:532:09:278:2020:17
8:22
#14841
30K
18.64 mi13:30:182:36:528:2527:25
8:49
#14301
20M
20.00 mi13:43:432:50:178:3113:25
9:52
#14478
21M
21.00 mi13:53:373:00:118:359:54
9:54
#14330
35K
21.75 mi14:00:523:07:268:377:15
9:41
#14424
23M
23.00 mi14:12:453:19:198:4011:53
9:29
#14337
24M
24.00 mi14:22:153:28:498:429:30
9:30
#14341
40K
24.85 mi14:30:503:37:248:458:35
10:02
#14380
25.2M
25.20 mi14:34:303:41:048:463:40
10:38
#14351
Finish
26.22 mi14:43:383:50:128:479:08
8:58
#14309
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi161625662566214374(Top 56%)4595(Top 42%)4595(Top 262%)
10K6.21 mi3.10 mi16229-675692-305692-3016388(Top 64%)5759(Top 53%)5759(Top 329%)
15K9.32 mi3.11 mi15556+6735281+4115281+41114374(Top 56%)4595(Top 42%)4595(Top 262%)
20K12.43 mi3.11 mi15563-75304-235304-2315848(Top 62%)5497(Top 50%)5497(Top 314%)
Half13.11 mi0.68 mi15395+1685209+955209+9512229(Top 48%)3467(Top 32%)3467(Top 198%)
25K15.53 mi2.42 mi14841+5544901+3084901+30812361(Top 48%)3708(Top 34%)3708(Top 212%)
30K18.64 mi3.11 mi14301+5404661+2404661+24012341(Top 48%)3916(Top 36%)3916(Top 223%)
20M20.00 mi1.36 mi14478-1774805-1444805-14416059(Top 63%)6240(Top 57%)6240(Top 356%)
21M21.00 mi1.00 mi14330+1484780+254780+2512615(Top 49%)4596(Top 42%)4596(Top 262%)
35K21.75 mi0.75 mi14424-944860-804860-8016203(Top 63%)6464(Top 59%)6464(Top 369%)
23M23.00 mi1.25 mi14337+874876-164876-1613508(Top 53%)5169(Top 47%)5169(Top 295%)
24M24.00 mi1.00 mi14341-44925-494925-4914504(Top 57%)5713(Top 52%)5713(Top 326%)
40K24.85 mi0.85 mi14380-394988-634988-6315183(Top 59%)6111(Top 56%)6111(Top 349%)
25.2M25.20 mi0.35 mi14351+294987+14987+113347(Top 52%)5267(Top 48%)5267(Top 300%)
Finish26.22 mi1.02 mi14309+424989-24989-214047(Top 55%)5513(Top 50%)5513(Top 314%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

14374

Females

4595

F45-49

4595

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

16388

Females

5759

F45-49

5759

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

14374

Females

4595

F45-49

4595

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

15848

Females

5497

F45-49

5497

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

12229

Females

3467

F45-49

3467

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

12361

Females

3708

F45-49

3708

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

12341

Females

3916

F45-49

3916

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16059

Females

6240

F45-49

6240

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

12615

Females

4596

F45-49

4596

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

16203

Females

6464

F45-49

6464

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

13508

Females

5169

F45-49

5169

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

14504

Females

5713

F45-49

5713

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

15183

Females

6111

F45-49

6111

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

13347

Females

5267

F45-49

5267

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

14047

Females

5513

F45-49

5513

Passing Analysis

Category:
Athletes Passed
3344
Passed By
1491
Net Change
+1853
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16162
5K → 10K256323-67#16162#16229
10K → 15K69017+673#16229#15556
15K → 20K234241-7#15556#15563
20K → Half1702+168#15563#15395
Half → 25K56511+554#15395#14841
25K → 30K58949+540#14841#14301
30K → 20M87264-177#14301#14478
20M → 21M20254+148#14478#14330
21M → 35K62156-94#14330#14424
35K → 23M17689+87#14424#14337
23M → 24M100104-4#14337#14341
24M → 40K63102-39#14341#14380
40K → 25.2M5021+29#14380#14351
25.2M → Finish10058+42#14351#14309
TOTALS33441491+1853
📊

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