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BOSTON MARATHON 2024

Chiemi Muroi

Bib: 22613•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 41%
Masters (Masters Women)
#0 / 6263
Top 29%
Division (F50-54)
#0 / 1187
Top 22%
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
8:21/mi
25:57
↑ 97↓ 3451.5%
10K· 6.21 mi
8:21/mi
51:54
↑ 79↓ 1380.4%
15K· 9.32 mi
8:18/mi
1:17:40
↑ 67↓ 78
20K· 12.43 mi
8:17/mi
1:43:25
↑ 106↓ 860.1%
Half· 13.11 mi
8:05/mi
1:48:56
↑ 19↓ 370.5%
25K· 15.53 mi
8:26/mi
2:09:23
↑ 66↓ 880.2%
30K· 18.64 mi
8:46/mi
2:36:38
↑ 181↓ 1480.2%
20M
8:57/mi
2:48:48
↑ 64↓ 500.2%
21M
9:40/mi
2:58:28
↑ 106↓ 241.6%
35K· 21.75 mi
8:52/mi
3:05:06
↑ 17↓ 861.7%
23M
9:10/mi
3:16:35
↑ 23↓ 630.6%
24M
8:58/mi
3:25:33
↓ 821.3%
40K· 24.85 mi
9:05/mi
3:33:19
↓ 200.3%
25.2M
10:09/mi
3:36:49
↑ 13↓ 160.2%
Finish· 26.22 mi
8:51/mi
3:45:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:56
Pace8:19 /mi
2nd Half
Distance13.11 mi
Time1:56:54
Pace8:55 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:3925:578:2125:57
8:21
-
10K
6.21 mi11:49:3651:548:2125:57
8:21
0:00
15K
9.32 mi12:15:221:17:408:2025:46
8:18
-0:03
20K
12.43 mi12:41:071:43:258:1925:45
8:17
-0:01
Half
13.11 mi12:46:381:48:568:195:31
8:05
-0:12
25K
15.53 mi13:07:052:09:238:2020:27
8:26
+0:21
30K
18.64 mi13:34:202:36:388:2427:15
8:46
+0:20
20M
20.00 mi13:46:302:48:488:2612:10
8:57
+0:11
21M
21.00 mi13:56:102:58:288:309:40
9:40
+0:43
35K
21.75 mi14:02:483:05:068:316:38
8:52
-0:48
23M
23.00 mi14:14:173:16:358:3311:29
9:10
+0:18
24M
24.00 mi14:23:153:25:338:348:58
8:58
-0:12
40K
24.85 mi14:31:013:33:198:357:46
9:05
+0:07
25.2M
25.20 mi14:34:313:36:498:363:30
10:09
+1:04
Finish
26.22 mi14:43:323:45:508:379:01
8:51
-1:18

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

8:05 /mi

Average Pace

8:37 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:23

57% of race

Time at Steady Pace

1:11:48

32% of race

Time at Slower Pace

24:39

11% of race

Average Pace: 8:37 /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 mi11:23:3925:578:2125:57
8:21
#16956
10K
6.21 mi11:49:3651:548:2125:57
8:21
#16641
15K
9.32 mi12:15:221:17:408:2025:46
8:18
#16120
20K
12.43 mi12:41:071:43:258:1925:45
8:17
#15400
Half
13.11 mi12:46:381:48:568:195:31
8:05
#15288
25K
15.53 mi13:07:052:09:238:2020:27
8:26
#14806
30K
18.64 mi13:34:202:36:388:2427:15
8:46
#14218
20M
20.00 mi13:46:302:48:488:2612:10
8:57
#14028
21M
21.00 mi13:56:102:58:288:309:40
9:40
#13845
35K
21.75 mi14:02:483:05:068:316:38
8:52
#13761
23M
23.00 mi14:14:173:16:358:3311:29
9:10
#13633
24M
24.00 mi14:23:153:25:338:348:58
8:58
#13524
40K
24.85 mi14:31:013:33:198:357:46
9:05
#13399
25.2M
25.20 mi14:34:313:36:498:363:30
10:09
#13351
Finish
26.22 mi14:43:323:45:508:379:01
8:51
#13331
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi169566132613215238(Top 60%)5109(Top 47%)5109(Top 430%)
10K6.21 mi3.10 mi16641+3155941+1915941+19116446(Top 64%)5790(Top 53%)5790(Top 488%)
15K9.32 mi3.11 mi16120+5215626+3155626+31515238(Top 60%)5109(Top 47%)5109(Top 430%)
20K12.43 mi3.11 mi15400+7205204+4225204+42213645(Top 53%)4215(Top 39%)4215(Top 355%)
Half13.11 mi0.68 mi15288+1125132+725132+7213359(Top 52%)4123(Top 38%)4123(Top 347%)
25K15.53 mi2.42 mi14806+4824879+2534879+25312728(Top 50%)3898(Top 36%)3898(Top 328%)
30K18.64 mi3.11 mi14218+5884610+2694610+26912054(Top 47%)3769(Top 35%)3769(Top 318%)
20M20.00 mi1.36 mi14028+1904559+514559+5111885(Top 47%)3965(Top 36%)3965(Top 334%)
21M21.00 mi1.00 mi13845+1834519+404519+4011575(Top 45%)4046(Top 37%)4046(Top 341%)
35K21.75 mi0.75 mi13761+844499+204499+2012692(Top 50%)4638(Top 42%)4638(Top 391%)
23M23.00 mi1.25 mi13633+1284487+124487+1212024(Top 47%)4417(Top 40%)4417(Top 372%)
24M24.00 mi1.00 mi13524+1094475+124475+1211999(Top 47%)4407(Top 40%)4407(Top 371%)
40K24.85 mi0.85 mi13399+1254438+374438+3711286(Top 44%)4190(Top 38%)4190(Top 353%)
25.2M25.20 mi0.35 mi13351+484427+114427+1111569(Top 45%)4373(Top 40%)4373(Top 368%)
Finish26.22 mi1.02 mi13331+204453-264453-2613442(Top 53%)5190(Top 48%)5190(Top 437%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

15238

Females

5109

F50-54

5109

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

16446

Females

5790

F50-54

5790

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

15238

Females

5109

F50-54

5109

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

13645

Females

4215

F50-54

4215

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13359

Females

4123

F50-54

4123

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

12728

Females

3898

F50-54

3898

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

12054

Females

3769

F50-54

3769

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

11885

Females

3965

F50-54

3965

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

11575

Females

4046

F50-54

4046

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

12692

Females

4638

F50-54

4638

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12024

Females

4417

F50-54

4417

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

11999

Females

4407

F50-54

4407

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11286

Females

4190

F50-54

4190

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

11569

Females

4373

F50-54

4373

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

13442

Females

5190

F50-54

5190

Passing Analysis

Category:
Athletes Passed
4213
Passed By
588
Net Change
+3625
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16956
5K → 10K459144+315#16956#16641
10K → 15K56342+521#16641#16120
15K → 20K7299+720#16120#15400
20K → Half1153+112#15400#15288
Half → 25K50220+482#15288#14806
25K → 30K62537+588#14806#14218
30K → 20M23646+190#14218#14028
20M → 21M22643+183#14028#13845
21M → 35K12339+84#13845#13761
35K → 23M18658+128#13761#13633
23M → 24M14031+109#13633#13524
24M → 40K15631+125#13524#13399
40K → 25.2M7224+48#13399#13351
25.2M → Finish8161+20#13351#13331
TOTALS4213588+3625
📊

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