Vibian Chepkirui

Bib: 117F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 0.4%
Gender (Female)
#0 / 11423
Top 0.2%
Division (F18-39)
#0 / 4884
Top 0.4%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:50
Rank: #321
Start5K
17:50 | 5:44/mi
10K· 6.21 mi
34:47
Rank: #194 (+127)
5K10K
16:57 | 5:27/mi
15K· 9.32 mi
51:15
Rank: #120 (+74)
10K15K
16:28 | 5:18/mi
20K· 12.43 mi
1:08:12
Rank: #112 (+8)
15K20K
16:57 | 5:27/mi
Half· 13.11 mi
1:11:54
Rank: #109 (+3)
20KHalf
3:42 | 5:25/mi
25K· 15.53 mi
1:25:07
Rank: #99 (+10)
Half25K
13:13 | 5:27/mi
30K· 18.64 mi
1:42:34
Rank: #95 (+4)
25K30K
17:27 | 5:37/mi
20M
1:50:23
Rank: #96 (-1)
30K20M
7:49 | 5:45/mi
21M
1:56:43
Rank: #100 (-4)
20M21M
6:20 | 6:20/mi
35K· 21.75 mi
2:00:53
Rank: #101 (-1)
21M35K
4:10 | 5:34/mi
23M
2:08:30
Rank: #107 (-6)
35K23M
7:37 | 6:05/mi
24M
2:14:28
Rank: #105 (+2)
23M24M
5:58 | 5:58/mi
40K· 24.85 mi
2:19:43
Rank: #108 (-3)
24M40K
5:15 | 6:08/mi
25.2M
2:22:01
Rank: #109 (-1)
40K25.2M
2:18 | 6:40/mi
Finish· 26.22 mi
2:28:12
Rank: #114 (-5)
25.2MFinish
6:11 | 6:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:11:54
Pace5:29 /mi
2nd Half
Distance13.11 mi
Time1:16:18
Pace5:49 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:04:5017:505:4417:50
5:44
-
10K
6.21 mi10:21:4734:475:3616:57
5:27
-0:17
15K
9.32 mi10:38:1551:155:3016:28
5:18
-0:09
20K
12.43 mi10:55:121:08:125:2916:57
5:27
+0:09
Half
13.11 mi10:58:541:11:545:293:42
5:25
-0:02
25K
15.53 mi11:12:071:25:075:2913:13
5:27
+0:02
30K
18.64 mi11:29:341:42:345:3017:27
5:37
+0:10
20M
20.00 mi11:37:231:50:235:317:49
5:45
+0:08
21M
21.00 mi11:43:431:56:435:336:20
6:20
+0:35
35K
21.75 mi11:47:532:00:535:344:10
5:34
-0:46
23M
23.00 mi11:55:302:08:305:357:37
6:05
+0:31
24M
24.00 mi12:01:282:14:285:365:58
5:58
-0:07
40K
24.85 mi12:06:432:19:435:375:15
6:08
+0:10
25.2M
25.20 mi12:09:012:22:015:382:18
6:40
+0:32
Finish
26.22 mi12:15:122:28:125:396:11
6:04
-0:36

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

5:18 /mi

Average Pace

5:39 /mi

Slowest Pace

6:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:07:17

45% of race

Time at Steady Pace

47:16

32% of race

Time at Slower Pace

33:39

23% of race

Average Pace: 5:39 /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 mi10:04:5017:505:4417:50
5:44
#321
10K
6.21 mi10:21:4734:475:3616:57
5:27
#194
15K
9.32 mi10:38:1551:155:3016:28
5:18
#120
20K
12.43 mi10:55:121:08:125:2916:57
5:27
#112
Half
13.11 mi10:58:541:11:545:293:42
5:25
#109
25K
15.53 mi11:12:071:25:075:2913:13
5:27
#99
30K
18.64 mi11:29:341:42:345:3017:27
5:37
#95
20M
20.00 mi11:37:231:50:235:317:49
5:45
#96
21M
21.00 mi11:43:431:56:435:336:20
6:20
#100
35K
21.75 mi11:47:532:00:535:344:10
5:34
#101
23M
23.00 mi11:55:302:08:305:357:37
6:05
#107
24M
24.00 mi12:01:282:14:285:365:58
5:58
#105
40K
24.85 mi12:06:432:19:435:375:15
6:08
#108
25.2M
25.20 mi12:09:012:22:015:382:18
6:40
#109
Finish
26.22 mi12:15:122:28:125:396:11
6:04
#114
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi321222256(Top 0.2%)16(Top 0.1%)16(Top 0.3%)
10K6.21 mi3.10 mi194+12716+616+6115(Top 0.4%)9(Top 0.08%)9(Top 0.2%)
15K9.32 mi3.11 mi120+7415+115+156(Top 0.2%)16(Top 0.1%)16(Top 0.3%)
20K12.43 mi3.11 mi112+816-116-177(Top 0.3%)8(Top 0.07%)8(Top 0.2%)
Half13.11 mi0.68 mi109+315+115+186(Top 0.3%)4(Top 0.04%)4(Top 0.08%)
25K15.53 mi2.42 mi99+10151579(Top 0.3%)16(Top 0.1%)16(Top 0.3%)
30K18.64 mi3.11 mi95+416-116-187(Top 0.3%)18(Top 0.2%)18(Top 0.4%)
20M20.00 mi1.36 mi96-11616129(Top 0.5%)21(Top 0.2%)21(Top 0.4%)
21M21.00 mi1.00 mi100-418-218-2394(Top 1%)30(Top 0.3%)30(Top 0.6%)
35K21.75 mi0.75 mi101-11818137(Top 0.5%)22(Top 0.2%)22(Top 0.5%)
23M23.00 mi1.25 mi107-61818445(Top 2%)29(Top 0.3%)29(Top 0.6%)
24M24.00 mi1.00 mi105+21818496(Top 2%)28(Top 0.2%)28(Top 0.6%)
40K24.85 mi0.85 mi108-319-119-1569(Top 2%)32(Top 0.3%)32(Top 0.7%)
25.2M25.20 mi0.35 mi109-11919875(Top 3%)41(Top 0.4%)41(Top 0.8%)
Finish26.22 mi1.02 mi114-51919917(Top 3%)41(Top 0.4%)41(Top 0.8%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.2%
×21stories
+97ft-345ft

Overall

56

Females

16

F18-39

16

5K→10K

3.1 - 6.2 mi

Top 0.4%
×5stories
+79ft-138ft

Overall

115

Females

9

F18-39

9

10K→15K

6.2 - 9.3 mi

Top 0.2%
×3stories
+67ft-78ft

Overall

56

Females

16

F18-39

16

15K→20K

9.3 - 12.4 mi

Top 0.3%
×5stories
+106ft-86ft

Overall

77

Females

8

F18-39

8

20K→Half

12.4 - 13.1 mi

Top 0.3%
×2stories
+19ft-37ft

Overall

86

Females

4

F18-39

4

Half→25K

13.1 - 15.5 mi

Top 0.3%
×4stories
+66ft-88ft

Overall

79

Females

16

F18-39

16

25K→30K

15.5 - 18.6 mi

Top 0.3%
×9stories
+181ft-148ft

Overall

87

Females

18

F18-39

18

30K→20M

18.6 - 20.0 mi

Top 0.5%
×5stories
+64ft-50ft

Overall

129

Females

21

F18-39

21

20M→21M

20.0 - 21.0 mi

Top 1%
×8stories
+106ft-24ft

Overall

394

Females

30

F18-39

30

21M→35K

21.0 - 21.8 mi

Top 0.5%
×7stories
+17ft-86ft

Overall

137

Females

22

F18-39

22

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

445

Females

29

F18-39

29

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

496

Females

28

F18-39

28

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

569

Females

32

F18-39

32

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

875

Females

41

F18-39

41

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

917

Females

41

F18-39

41

Passing Analysis

Category:
Athletes Passed
237
Passed By
30
Net Change
+207
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#321
5K10K1270+127#321#194
10K15K740+74#194#120
15K20K91+8#120#112
20KHalf30+3#112#109
Half25K100+10#109#99
25K30K51+4#99#95
30K20M23-1#95#96
20M21M15-4#96#100
21M35K12-1#100#101
35K23M28-6#101#107
23M24M20+2#107#105
24M40K03-3#105#108
40K25.2M01-1#108#109
25.2MFinish16-5#109#114
TOTALS23730+207
📊

Passing Visuals

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🔥Passing Intensity

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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