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BOSTON MARATHON 2024

Chizu Morizaki

Bib: 6051•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 13%
Gender (Female)
#0 / 10924
Top 2%
Masters (Masters Women)
#0 / 6263
Top 0.6%
Division (F45-49)
#0 / 1753
Top 0.5%
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
6:41/mi
20:45
↑ 97↓ 3451.5%
10K· 6.21 mi
6:42/mi
41:33
↑ 79↓ 1380.4%
15K· 9.32 mi
6:45/mi
1:02:30
↑ 67↓ 78
20K· 12.43 mi
6:50/mi
1:23:45
↑ 106↓ 860.1%
Half· 13.11 mi
6:47/mi
1:28:23
↑ 19↓ 370.5%
25K· 15.53 mi
6:55/mi
1:45:09
↑ 66↓ 880.2%
30K· 18.64 mi
7:08/mi
2:07:20
↑ 181↓ 1480.2%
20M
7:12/mi
2:17:07
↑ 64↓ 500.2%
21M
7:35/mi
2:24:42
↑ 106↓ 241.6%
35K· 21.75 mi
6:57/mi
2:29:54
↑ 17↓ 861.7%
23M
7:22/mi
2:39:08
↑ 23↓ 630.6%
24M
7:05/mi
2:46:13
↓ 821.3%
40K· 24.85 mi
7:08/mi
2:52:19
↓ 200.3%
25.2M
8:22/mi
2:55:12
↑ 13↓ 160.2%
Finish· 26.22 mi
7:17/mi
3:02:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:23
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:34:14
Pace7:11 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:2920:456:4120:45
6:41
-
10K
6.21 mi10:46:1741:336:4120:48
6:42
+0:01
15K
9.32 mi11:07:141:02:306:4220:57
6:45
+0:03
20K
12.43 mi11:28:291:23:456:4421:15
6:50
+0:05
Half
13.11 mi11:33:071:28:236:454:38
6:47
-0:03
25K
15.53 mi11:49:531:45:096:4616:46
6:55
+0:08
30K
18.64 mi12:12:042:07:206:5022:11
7:08
+0:13
20M
20.00 mi12:21:512:17:076:519:47
7:12
+0:04
21M
21.00 mi12:29:262:24:426:537:35
7:35
+0:23
35K
21.75 mi12:34:382:29:546:545:12
6:57
-0:38
23M
23.00 mi12:43:522:39:086:559:14
7:22
+0:25
24M
24.00 mi12:50:572:46:136:567:05
7:05
-0:17
40K
24.85 mi12:57:032:52:196:566:06
7:08
+0:03
25.2M
25.20 mi12:59:562:55:126:572:53
8:22
+1:14
Finish
26.22 mi13:07:213:02:376:587:25
7:17
-1:05

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

6:41 /mi

Average Pace

6:58 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:23

48% of race

Time at Steady Pace

1:14:32

41% of race

Time at Slower Pace

19:42

11% of race

Average Pace: 6:58 /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 mi10:25:2920:456:4120:45
6:41
#4679
10K
6.21 mi10:46:1741:336:4120:48
6:42
#4440
15K
9.32 mi11:07:141:02:306:4220:57
6:45
#4368
20K
12.43 mi11:28:291:23:456:4421:15
6:50
#4252
Half
13.11 mi11:33:071:28:236:454:38
6:47
#4251
25K
15.53 mi11:49:531:45:096:4616:46
6:55
#4143
30K
18.64 mi12:12:042:07:206:5022:11
7:08
#3941
20M
20.00 mi12:21:512:17:076:519:47
7:12
#3793
21M
21.00 mi12:29:262:24:426:537:35
7:35
#3655
35K
21.75 mi12:34:382:29:546:545:12
6:57
#3589
23M
23.00 mi12:43:522:39:086:559:14
7:22
#3510
24M
24.00 mi12:50:572:46:136:567:05
7:05
#3423
40K
24.85 mi12:57:032:52:196:566:06
7:08
#3334
25.2M
25.20 mi12:59:562:55:126:572:53
8:22
#3321
Finish
26.22 mi13:07:213:02:376:587:25
7:17
#3284
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi46793043044258(Top 17%)264(Top 2%)264(Top 15%)
10K6.21 mi3.10 mi4440+239268+36268+364299(Top 17%)260(Top 2%)260(Top 15%)
15K9.32 mi3.11 mi4368+72271-3271-34258(Top 17%)264(Top 2%)264(Top 15%)
20K12.43 mi3.11 mi4252+116266+5266+54188(Top 16%)281(Top 3%)281(Top 16%)
Half13.11 mi0.68 mi4251+1259+7259+74509(Top 18%)335(Top 3%)335(Top 19%)
25K15.53 mi2.42 mi4143+108254+5254+53902(Top 15%)279(Top 3%)279(Top 16%)
30K18.64 mi3.11 mi3941+202242+12242+123531(Top 14%)299(Top 3%)299(Top 17%)
20M20.00 mi1.36 mi3793+148238+4238+43164(Top 12%)275(Top 3%)275(Top 16%)
21M21.00 mi1.00 mi3655+138235+3235+32781(Top 11%)259(Top 2%)259(Top 15%)
35K21.75 mi0.75 mi3589+66236-1236-12909(Top 11%)274(Top 3%)274(Top 16%)
23M23.00 mi1.25 mi3510+79242-6242-63178(Top 12%)369(Top 3%)369(Top 21%)
24M24.00 mi1.00 mi3423+87238+4238+42615(Top 10%)294(Top 3%)294(Top 17%)
40K24.85 mi0.85 mi3334+89237+1237+12307(Top 9%)263(Top 2%)263(Top 15%)
25.2M25.20 mi0.35 mi3321+132372373948(Top 15%)790(Top 7%)790(Top 45%)
Finish26.22 mi1.02 mi3284+37246-9246-94409(Top 17%)932(Top 9%)932(Top 53%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21story building
+97ft-345ft

Overall

4258

Females

264

F45-49

264

5K→10K

3.1 - 6.2 mi

Top 17%
×5story building
+79ft-138ft

Overall

4299

Females

260

F45-49

260

10K→15K

6.2 - 9.3 mi

Top 17%
×3story building
+67ft-78ft

Overall

4258

Females

264

F45-49

264

15K→20K

9.3 - 12.4 mi

Top 16%
×5story building
+106ft-86ft

Overall

4188

Females

281

F45-49

281

20K→Half

12.4 - 13.1 mi

Top 18%
×2story building
+19ft-37ft

Overall

4509

Females

335

F45-49

335

Half→25K

13.1 - 15.5 mi

Top 15%
×4story building
+66ft-88ft

Overall

3902

Females

279

F45-49

279

25K→30K

15.5 - 18.6 mi

Top 14%
×9story building
+181ft-148ft

Overall

3531

Females

299

F45-49

299

30K→20M

18.6 - 20.0 mi

Top 12%
×5story building
+64ft-50ft

Overall

3164

Females

275

F45-49

275

20M→21M

20.0 - 21.0 mi

Top 11%
×8story building
+106ft-24ft

Overall

2781

Females

259

F45-49

259

21M→35K

21.0 - 21.8 mi

Top 11%
×7story building
+17ft-86ft

Overall

2909

Females

274

F45-49

274

35K→23M

21.8 - 23.0 mi

Top 12%
×5story building
+23ft-63ft

Overall

3178

Females

369

F45-49

369

23M→24M

23.0 - 24.0 mi

Top 10%
×6story building
+12ft-82ft

Overall

2615

Females

294

F45-49

294

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2307

Females

263

F45-49

263

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

3948

Females

790

F45-49

790

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4409

Females

932

F45-49

932

Passing Analysis

Category:
Athletes Passed
2039
Passed By
644
Net Change
+1395
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4679
5K → 10K31778+239#4679#4440
10K → 15K16896+72#4440#4368
15K → 20K20589+116#4368#4252
20K → Half2726+1#4252#4251
Half → 25K17769+108#4251#4143
25K → 30K29088+202#4143#3941
30K → 20M18436+148#3941#3793
20M → 21M16123+138#3793#3655
21M → 35K7812+66#3655#3589
35K → 23M12748+79#3589#3510
23M → 24M10215+87#3510#3423
24M → 40K978+89#3423#3334
40K → 25.2M2714+13#3334#3321
25.2M → Finish7942+37#3321#3284
TOTALS2039644+1395
📊

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