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BOSTON MARATHON 2024

April Irwin

Bib: 16423•F

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Top 47%
Division (F40-44)
#0 / 1613
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
7:43/mi
23:59
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
48:30
↑ 79↓ 1380.4%
15K· 9.32 mi
8:08/mi
1:13:46
↑ 67↓ 78
20K· 12.43 mi
9:38/mi
1:43:41
↑ 106↓ 860.1%
Half· 13.11 mi
8:21/mi
1:49:23
↑ 19↓ 370.5%
25K· 15.53 mi
10:14/mi
2:14:11
↑ 66↓ 880.2%
30K· 18.64 mi
9:52/mi
2:44:51
↑ 181↓ 1480.2%
20M
9:57/mi
2:58:22
↑ 64↓ 500.2%
21M
11:06/mi
3:09:28
↑ 106↓ 241.6%
35K· 21.75 mi
9:57/mi
3:16:55
↑ 17↓ 861.7%
23M
9:57/mi
3:29:22
↑ 23↓ 630.6%
24M
9:28/mi
3:38:50
↓ 821.3%
40K· 24.85 mi
9:00/mi
3:46:32
↓ 200.3%
25.2M
10:12/mi
3:50:03
↑ 13↓ 160.2%
Finish· 26.22 mi
8:55/mi
3:59:08
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:23
Pace8:21 /mi
2nd Half
Distance13.11 mi
Time2:09:45
Pace9:54 /mi
📊Positive Split: 18.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:2623:597:4323:59
7:43
-
10K
6.21 mi11:38:5748:307:4824:31
7:53
+0:10
15K
9.32 mi12:04:131:13:467:5525:16
8:08
+0:15
20K
12.43 mi12:34:081:43:418:2129:55
9:38
+1:30
Half
13.11 mi12:39:501:49:238:215:42
8:21
-1:17
25K
15.53 mi13:04:382:14:118:3824:48
10:14
+1:53
30K
18.64 mi13:35:182:44:518:5130:40
9:52
-0:22
20M
20.00 mi13:48:492:58:228:5513:31
9:57
+0:05
21M
21.00 mi13:59:553:09:289:0111:06
11:06
+1:09
35K
21.75 mi14:07:223:16:559:037:27
9:57
-1:09
23M
23.00 mi14:19:493:29:229:0612:27
9:57
0:00
24M
24.00 mi14:29:173:38:509:079:28
9:28
-0:29
40K
24.85 mi14:36:593:46:329:077:42
9:00
-0:28
25.2M
25.20 mi14:40:303:50:039:083:31
10:12
+1:12
Finish
26.22 mi14:49:353:59:089:089:05
8:55
-1:17

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

9:08 /mi

Slowest Pace

11:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:15

40% of race

Time at Steady Pace

1:43:28

43% of race

Time at Slower Pace

39:25

16% of race

Average Pace: 9:07 /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 mi11:14:2623:597:4323:59
7:43
#12478
10K
6.21 mi11:38:5748:307:4824:31
7:53
#12933
15K
9.32 mi12:04:131:13:467:5525:16
8:08
#13420
20K
12.43 mi12:34:081:43:418:2129:55
9:38
#15525
Half
13.11 mi12:39:501:49:238:215:42
8:21
#15487
25K
15.53 mi13:04:382:14:118:3824:48
10:14
#16509
30K
18.64 mi13:35:182:44:518:5130:40
9:52
#16609
20M
20.00 mi13:48:492:58:228:5513:31
9:57
#16604
21M
21.00 mi13:59:553:09:289:0111:06
11:06
#16638
35K
21.75 mi14:07:223:16:559:037:27
9:57
#16667
23M
23.00 mi14:19:493:29:229:0612:27
9:57
#16589
24M
24.00 mi14:29:173:38:509:079:28
9:28
#16469
40K
24.85 mi14:36:593:46:329:077:42
9:00
#16236
25.2M
25.20 mi14:40:303:50:039:083:31
10:12
#16157
Finish
26.22 mi14:49:353:59:089:089:05
8:55
#16077
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi124783402340214315(Top 56%)4557(Top 42%)4557(Top 283%)
10K6.21 mi3.10 mi12933-4553695-2933695-29313381(Top 52%)3981(Top 36%)3981(Top 247%)
15K9.32 mi3.11 mi13420-4874000-3054000-30514315(Top 56%)4557(Top 42%)4557(Top 283%)
20K12.43 mi3.11 mi15525-21055280-12805280-128019585(Top 77%)7576(Top 69%)7576(Top 470%)
Half13.11 mi0.68 mi15487+385263+175263+1714967(Top 59%)5034(Top 46%)5034(Top 312%)
25K15.53 mi2.42 mi16509-10225908-6455908-64519732(Top 77%)7776(Top 71%)7776(Top 482%)
30K18.64 mi3.11 mi16609-1006032-1246032-12416902(Top 66%)6457(Top 59%)6457(Top 400%)
20M20.00 mi1.36 mi16604+56074-426074-4216283(Top 64%)6355(Top 58%)6355(Top 394%)
21M21.00 mi1.00 mi16638-346113-396113-3916609(Top 65%)6650(Top 61%)6650(Top 412%)
35K21.75 mi0.75 mi16667-296152-396152-3917021(Top 67%)6859(Top 63%)6859(Top 425%)
23M23.00 mi1.25 mi16589+786129+236129+2315289(Top 60%)6067(Top 56%)6067(Top 376%)
24M24.00 mi1.00 mi16469+1206103+266103+2614367(Top 56%)5632(Top 52%)5632(Top 349%)
40K24.85 mi0.85 mi16236+2336001+1026001+10210924(Top 43%)4031(Top 37%)4031(Top 250%)
25.2M25.20 mi0.35 mi16157+795972+295972+2911807(Top 46%)4517(Top 41%)4517(Top 280%)
Finish26.22 mi1.02 mi16077+805950+225950+2213809(Top 54%)5383(Top 49%)5383(Top 334%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

14315

Females

4557

F40-44

4557

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

13381

Females

3981

F40-44

3981

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

14315

Females

4557

F40-44

4557

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

19585

Females

7576

F40-44

7576

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

14967

Females

5034

F40-44

5034

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

19732

Females

7776

F40-44

7776

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

16902

Females

6457

F40-44

6457

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

16283

Females

6355

F40-44

6355

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

16609

Females

6650

F40-44

6650

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

17021

Females

6859

F40-44

6859

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

15289

Females

6067

F40-44

6067

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

14367

Females

5632

F40-44

5632

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

10924

Females

4031

F40-44

4031

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

11807

Females

4517

F40-44

4517

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

13809

Females

5383

F40-44

5383

Passing Analysis

Category:
Athletes Passed
1540
Passed By
5139
Net Change
-3599
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12478
5K → 10K139594-455#12478#12933
10K → 15K93580-487#12933#13420
15K → 20K182123-2105#13420#15525
20K → Half5416+38#15525#15487
Half → 25K611083-1022#15487#16509
25K → 30K194294-100#16509#16609
30K → 20M124119+5#16609#16604
20M → 21M92126-34#16604#16638
21M → 35K5281-29#16638#16667
35K → 23M12951+78#16667#16589
23M → 24M14828+120#16589#16469
24M → 40K2341+233#16469#16236
40K → 25.2M856+79#16236#16157
25.2M → Finish11737+80#16157#16077
TOTALS15405139-3599
📊

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