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BOSTON MARATHON 2023

Claris Ndoro

Bib: 25608•F

NV

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
8:59/mi
27:55
↑ 97↓ 3451.5%
10K· 6.21 mi
9:51/mi
58:31
↑ 79↓ 1380.4%
15K· 9.32 mi
10:14/mi
1:30:19
↑ 67↓ 78
20K· 12.43 mi
10:34/mi
2:03:09
↑ 106↓ 860.1%
Half· 13.11 mi
10:11/mi
2:10:06
↑ 19↓ 370.5%
25K· 15.53 mi
11:05/mi
2:36:59
↑ 66↓ 880.2%
30K· 18.64 mi
11:37/mi
3:13:06
↑ 181↓ 1480.2%
20M
11:44/mi
3:29:03
↑ 64↓ 500.2%
21M
12:10/mi
3:41:13
↑ 106↓ 241.6%
35K· 21.75 mi
10:01/mi
3:48:43
↑ 17↓ 861.7%
23M
11:12/mi
4:02:45
↑ 23↓ 630.6%
24M
10:41/mi
4:13:26
↓ 821.3%
40K· 24.85 mi
11:00/mi
4:22:50
↓ 200.3%
25.2M
11:24/mi
4:26:46
↑ 13↓ 160.2%
Finish· 26.22 mi
10:01/mi
4:36:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:06
Pace9:55 /mi
2nd Half
Distance13.11 mi
Time2:26:52
Pace11:12 /mi
📊Positive Split: 12.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:0627:558:5927:55
8:59
-
10K
6.21 mi12:14:4258:319:2530:36
9:51
+0:52
15K
9.32 mi12:46:301:30:199:4131:48
10:14
+0:23
20K
12.43 mi13:19:202:03:099:5532:50
10:34
+0:20
Half
13.11 mi13:26:172:10:069:556:57
10:11
-0:23
25K
15.53 mi13:53:102:36:5910:0626:53
11:05
+0:54
30K
18.64 mi14:29:173:13:0610:2236:07
11:37
+0:32
20M
20.00 mi14:45:143:29:0310:2715:57
11:44
+0:07
21M
21.00 mi14:57:243:41:1310:3212:10
12:10
+0:26
35K
21.75 mi15:04:543:48:4310:317:30
10:01
-2:09
23M
23.00 mi15:18:564:02:4510:3314:02
11:12
+1:11
24M
24.00 mi15:29:374:13:2610:3410:41
10:41
-0:31
40K
24.85 mi15:39:014:22:5010:349:24
11:00
+0:19
25.2M
25.20 mi15:42:574:26:4610:353:56
11:24
+0:24
Finish
26.22 mi15:53:094:36:5810:3410:12
10:01
-1:23

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

8:59 /mi

Average Pace

10:34 /mi

Slowest Pace

12:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:58

42% of race

Time at Steady Pace

1:19:48

29% of race

Time at Slower Pace

1:22:12

30% of race

Average Pace: 10:34 /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 mi11:44:0627:558:5927:55
8:59
#20390
10K
6.21 mi12:14:4258:319:2530:36
9:51
#22104
15K
9.32 mi12:46:301:30:199:4131:48
10:14
#22850
20K
12.43 mi13:19:202:03:099:5532:50
10:34
#23224
Half
13.11 mi13:26:172:10:069:556:57
10:11
#23253
25K
15.53 mi13:53:102:36:5910:0626:53
11:05
#23434
30K
18.64 mi14:29:173:13:0610:2236:07
11:37
#23542
20M
20.00 mi14:45:143:29:0310:2715:57
11:44
#23559
21M
21.00 mi14:57:243:41:1310:3212:10
12:10
#23552
35K
21.75 mi15:04:543:48:4310:317:30
10:01
#23479
23M
23.00 mi15:18:564:02:4510:3314:02
11:12
#23453
24M
24.00 mi15:29:374:13:2610:3410:41
10:41
#23423
40K
24.85 mi15:39:014:22:5010:349:24
11:00
#23372
25.2M
25.20 mi15:42:574:26:4610:353:56
11:24
#23342
Finish
26.22 mi15:53:094:36:5810:3410:12
10:01
#23289
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi203908051805123965(Top 90%)9876(Top 86%)9876(Top 202%)
10K6.21 mi3.10 mi22104-17148907-8568907-85623380(Top 88%)9557(Top 84%)9557(Top 196%)
15K9.32 mi3.11 mi22850-7469260-3539260-35323965(Top 90%)9876(Top 86%)9876(Top 202%)
20K12.43 mi3.11 mi23224-3749467-2079467-20723955(Top 90%)9876(Top 86%)9876(Top 202%)
Half13.11 mi0.68 mi23253-299489-229489-2223657(Top 89%)9713(Top 85%)9713(Top 199%)
25K15.53 mi2.42 mi23434-1819586-979586-9724106(Top 91%)10010(Top 88%)10010(Top 205%)
30K18.64 mi3.11 mi23542-1089667-819667-8124032(Top 90%)10028(Top 88%)10028(Top 205%)
20M20.00 mi1.36 mi23559-179691-249691-2423868(Top 90%)10002(Top 88%)10002(Top 205%)
21M21.00 mi1.00 mi23552+79689+29689+222999(Top 86%)9552(Top 84%)9552(Top 196%)
35K21.75 mi0.75 mi23479+739658+319658+3121375(Top 80%)8705(Top 76%)8705(Top 178%)
23M23.00 mi1.25 mi23453+269660-29660-222740(Top 85%)9459(Top 83%)9459(Top 194%)
24M24.00 mi1.00 mi23423+309651+99651+922433(Top 84%)9332(Top 82%)9332(Top 191%)
40K24.85 mi0.85 mi23372+519634+179634+1722357(Top 84%)9326(Top 82%)9326(Top 191%)
25.2M25.20 mi0.35 mi23342+309625+99625+921401(Top 80%)8820(Top 77%)8820(Top 181%)
Finish26.22 mi1.02 mi23289+539605+209605+2021798(Top 82%)9011(Top 79%)9011(Top 185%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

23965

Females

9876

F18-39

9876

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

23380

Females

9557

F18-39

9557

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

23965

Females

9876

F18-39

9876

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

23955

Females

9876

F18-39

9876

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

23657

Females

9713

F18-39

9713

Half→25K

13.1 - 15.5 mi

Top 91%
×4story building
+66ft-88ft

Overall

24106

Females

10010

F18-39

10010

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

24032

Females

10028

F18-39

10028

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

23868

Females

10002

F18-39

10002

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

22999

Females

9552

F18-39

9552

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21375

Females

8705

F18-39

8705

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

22740

Females

9459

F18-39

9459

23M→24M

23.0 - 24.0 mi

Top 84%
×6story building
+12ft-82ft

Overall

22433

Females

9332

F18-39

9332

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

22357

Females

9326

F18-39

9326

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21401

Females

8820

F18-39

8820

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

21798

Females

9011

F18-39

9011

Passing Analysis

Category:
Athletes Passed
631
Passed By
3530
Net Change
-2899
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20390
5K → 10K131727-1714#20390#22104
10K → 15K26772-746#22104#22850
15K → 20K38412-374#22850#23224
20K → Half2756-29#23224#23253
Half → 25K38219-181#23253#23434
25K → 30K62170-108#23434#23542
30K → 20M4461-17#23542#23559
20M → 21M3831+7#23559#23552
21M → 35K763+73#23552#23479
35K → 23M5832+26#23479#23453
23M → 24M4919+30#23453#23423
24M → 40K6211+51#23423#23372
40K → 25.2M366+30#23372#23342
25.2M → Finish6411+53#23342#23289
TOTALS6313530-2899
📊

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