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BOSTON MARATHON 2024

Alexa Bator Chae

Bib: 21930•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F50-54)
#0 / 1187
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
8:58/mi
27:50
↑ 97↓ 3451.5%
10K· 6.21 mi
8:57/mi
55:37
↑ 79↓ 1380.4%
15K· 9.32 mi
9:01/mi
1:23:39
↑ 67↓ 78
20K· 12.43 mi
9:12/mi
1:52:14
↑ 106↓ 860.1%
Half· 13.11 mi
9:04/mi
1:58:25
↑ 19↓ 370.5%
25K· 15.53 mi
9:21/mi
2:21:06
↑ 66↓ 880.2%
30K· 18.64 mi
9:46/mi
2:51:28
↑ 181↓ 1480.2%
20M
9:50/mi
3:04:50
↑ 64↓ 500.2%
21M
10:18/mi
3:15:08
↑ 106↓ 241.6%
35K· 21.75 mi
10:06/mi
3:22:41
↑ 17↓ 861.7%
23M
10:18/mi
3:35:35
↑ 23↓ 630.6%
24M
10:09/mi
3:45:44
↓ 821.3%
40K· 24.85 mi
10:18/mi
3:54:32
↓ 200.3%
25.2M
11:10/mi
3:58:23
↑ 13↓ 160.2%
Finish· 26.22 mi
9:43/mi
4:08:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:25
Pace9:02 /mi
2nd Half
Distance13.11 mi
Time2:09:52
Pace9:54 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:1027:508:5827:50
8:58
-
10K
6.21 mi11:52:5755:378:5727:47
8:57
-0:01
15K
9.32 mi12:20:591:23:398:5828:02
9:01
+0:04
20K
12.43 mi12:49:341:52:149:0228:35
9:12
+0:11
Half
13.11 mi12:55:451:58:259:026:11
9:04
-0:08
25K
15.53 mi13:18:262:21:069:0522:41
9:21
+0:17
30K
18.64 mi13:48:482:51:289:1230:22
9:46
+0:25
20M
20.00 mi14:02:103:04:509:1413:22
9:50
+0:04
21M
21.00 mi14:12:283:15:089:1810:18
10:18
+0:28
35K
21.75 mi14:20:013:22:419:197:33
10:06
-0:12
23M
23.00 mi14:32:553:35:359:2212:54
10:18
+0:12
24M
24.00 mi14:43:043:45:449:2410:09
10:09
-0:09
40K
24.85 mi14:51:523:54:329:268:48
10:18
+0:09
25.2M
25.20 mi14:55:433:58:239:283:51
11:10
+0:52
Finish
26.22 mi15:05:374:08:179:299:54
9:43
-1:27

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

8:57 /mi

Average Pace

9:29 /mi

Slowest Pace

11:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:06

57% of race

Time at Steady Pace

53:38

22% of race

Time at Slower Pace

53:33

22% of race

Average Pace: 9:28 /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 mi11:25:1027:508:5827:50
8:58
#19898
10K
6.21 mi11:52:5755:378:5727:47
8:57
#19688
15K
9.32 mi12:20:591:23:398:5828:02
9:01
#19459
20K
12.43 mi12:49:341:52:149:0228:35
9:12
#19093
Half
13.11 mi12:55:451:58:259:026:11
9:04
#19059
25K
15.53 mi13:18:262:21:069:0522:41
9:21
#18673
30K
18.64 mi13:48:482:51:289:1230:22
9:46
#18243
20M
20.00 mi14:02:103:04:509:1413:22
9:50
#18078
21M
21.00 mi14:12:283:15:089:1810:18
10:18
#17824
35K
21.75 mi14:20:013:22:419:197:33
10:06
#17809
23M
23.00 mi14:32:553:35:359:2212:54
10:18
#17693
24M
24.00 mi14:43:043:45:449:2410:09
10:09
#17659
40K
24.85 mi14:51:523:54:329:268:48
10:18
#17582
25.2M
25.20 mi14:55:433:58:239:283:51
11:10
#17521
Finish
26.22 mi15:05:374:08:179:299:54
9:43
#17472
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi198987830783019018(Top 74%)7258(Top 66%)7258(Top 611%)
10K6.21 mi3.10 mi19688+2107694+1367694+13619523(Top 76%)7569(Top 69%)7569(Top 638%)
15K9.32 mi3.11 mi19459+2297554+1407554+14019018(Top 74%)7258(Top 66%)7258(Top 611%)
20K12.43 mi3.11 mi19093+3667343+2117343+21118199(Top 71%)6809(Top 62%)6809(Top 574%)
Half13.11 mi0.68 mi19059+347324+197324+1918572(Top 73%)7092(Top 65%)7092(Top 597%)
25K15.53 mi2.42 mi18673+3867133+1917133+19117017(Top 67%)6283(Top 58%)6283(Top 529%)
30K18.64 mi3.11 mi18243+4306972+1616972+16116543(Top 65%)6268(Top 57%)6268(Top 528%)
20M20.00 mi1.36 mi18078+1656905+676905+6715912(Top 62%)6166(Top 56%)6166(Top 519%)
21M21.00 mi1.00 mi17824+2546801+1046801+10414158(Top 55%)5404(Top 49%)5404(Top 455%)
35K21.75 mi0.75 mi17809+156806-56806-517465(Top 68%)7073(Top 65%)7073(Top 596%)
23M23.00 mi1.25 mi17693+1166760+466760+4616450(Top 64%)6628(Top 61%)6628(Top 558%)
24M24.00 mi1.00 mi17659+346768-86768-816823(Top 66%)6856(Top 63%)6856(Top 578%)
40K24.85 mi0.85 mi17582+776752+166752+1616037(Top 63%)6522(Top 60%)6522(Top 549%)
25.2M25.20 mi0.35 mi17521+616737+156737+1515068(Top 59%)6077(Top 56%)6077(Top 512%)
Finish26.22 mi1.02 mi17472+496737673717424(Top 68%)7226(Top 66%)7226(Top 609%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

19018

Females

7258

F50-54

7258

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

19523

Females

7569

F50-54

7569

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

19018

Females

7258

F50-54

7258

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

18199

Females

6809

F50-54

6809

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

18572

Females

7092

F50-54

7092

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17017

Females

6283

F50-54

6283

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

16543

Females

6268

F50-54

6268

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

15912

Females

6166

F50-54

6166

20M→21M

20.0 - 21.0 mi

Top 55%
×8story building
+106ft-24ft

Overall

14158

Females

5404

F50-54

5404

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

17465

Females

7073

F50-54

7073

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

16450

Females

6628

F50-54

6628

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

16823

Females

6856

F50-54

6856

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16037

Females

6522

F50-54

6522

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15068

Females

6077

F50-54

6077

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

17424

Females

7226

F50-54

7226

Passing Analysis

Category:
Athletes Passed
3138
Passed By
712
Net Change
+2426
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19898
5K → 10K372162+210#19898#19688
10K → 15K345116+229#19688#19459
15K → 20K44377+366#19459#19093
20K → Half6430+34#19093#19059
Half → 25K41428+386#19059#18673
25K → 30K48353+430#18673#18243
30K → 20M18722+165#18243#18078
20M → 21M26410+254#18078#17824
21M → 35K6247+15#17824#17809
35K → 23M16650+116#17809#17693
23M → 24M8046+34#17693#17659
24M → 40K9720+77#17659#17582
40K → 25.2M7312+61#17582#17521
25.2M → Finish8839+49#17521#17472
TOTALS3138712+2426
📊

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