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BOSTON MARATHON 2023

Kiah Hardcastle

Bib: 9491•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 21%
Gender (Female)
#0 / 11423
Top 4%
Division (F18-39)
#0 / 4884
Top 8%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:13
Rank: #7199
Start → 5K
22:13 | 7:09/mi
10K· 6.21 mi
44:57
Rank: #7987 (-788)
5K → 10K
22:44 | 7:19/mi
15K· 9.32 mi
1:07:14
Rank: #7845 (+142)
10K → 15K
22:17 | 7:10/mi
20K· 12.43 mi
1:29:26
Rank: #7514 (+331)
15K → 20K
22:12 | 7:09/mi
Half· 13.11 mi
1:34:18
Rank: #7507 (+7)
20K → Half
4:52 | 7:09/mi
25K· 15.53 mi
1:51:34
Rank: #7267 (+240)
Half → 25K
17:16 | 7:07/mi
30K· 18.64 mi
2:13:32
Rank: #6772 (+495)
25K → 30K
21:58 | 7:04/mi
20M
2:23:14
Rank: #6592 (+180)
30K → 20M
9:42 | 7:08/mi
21M
2:30:26
Rank: #6355 (+237)
20M → 21M
7:12 | 7:12/mi
35K· 21.75 mi
2:35:39
Rank: #6294 (+61)
21M → 35K
5:13 | 6:58/mi
23M
2:44:30
Rank: #6121 (+173)
35K → 23M
8:51 | 7:04/mi
24M
2:51:33
Rank: #6015 (+106)
23M → 24M
7:03 | 7:03/mi
40K· 24.85 mi
2:57:24
Rank: #5859 (+156)
24M → 40K
5:51 | 6:51/mi
25.2M
2:59:55
Rank: #5781 (+78)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
3:06:20
Rank: #5547 (+234)
25.2M → Finish
6:25 | 6:18/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:34:18
Pace7:12 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:32:02
Pace7:01 /mi
📊Negative Split: 2.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:5822:137:0922:13
7:09
-
10K
6.21 mi11:10:4244:577:1422:44
7:19
+0:10
15K
9.32 mi11:32:591:07:147:1322:17
7:10
-0:09
20K
12.43 mi11:55:111:29:267:1222:12
7:09
-0:01
Half
13.11 mi12:00:031:34:187:124:52
7:09
0:00
25K
15.53 mi12:17:191:51:347:1117:16
7:07
-0:02
30K
18.64 mi12:39:172:13:327:1021:58
7:04
-0:03
20M
20.00 mi12:48:592:23:147:109:42
7:08
+0:04
21M
21.00 mi12:56:112:30:267:107:12
7:12
+0:04
35K
21.75 mi13:01:242:35:397:095:13
6:58
-0:14
23M
23.00 mi13:10:152:44:307:098:51
7:04
+0:06
24M
24.00 mi13:17:182:51:337:097:03
7:03
-0:01
40K
24.85 mi13:23:092:57:247:085:51
6:51
-0:12
25.2M
25.20 mi13:25:402:59:557:082:31
7:18
+0:27
Finish
26.22 mi13:32:053:06:207:076:25
6:18
-1:00

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

6:18 /mi

Average Pace

7:07 /mi

Slowest Pace

7:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

12:16

7% of race

Time at Steady Pace

2:54:04

93% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:06 /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 mi10:47:5822:137:0922:13
7:09
#7199
10K
6.21 mi11:10:4244:577:1422:44
7:19
#7987
15K
9.32 mi11:32:591:07:147:1322:17
7:10
#7845
20K
12.43 mi11:55:111:29:267:1222:12
7:09
#7514
Half
13.11 mi12:00:031:34:187:124:52
7:09
#7507
25K
15.53 mi12:17:191:51:347:1117:16
7:07
#7267
30K
18.64 mi12:39:172:13:327:1021:58
7:04
#6772
20M
20.00 mi12:48:592:23:147:109:42
7:08
#6592
21M
21.00 mi12:56:112:30:267:107:12
7:12
#6355
35K
21.75 mi13:01:242:35:397:095:13
6:58
#6294
23M
23.00 mi13:10:152:44:307:098:51
7:04
#6121
24M
24.00 mi13:17:182:51:337:097:03
7:03
#6015
40K
24.85 mi13:23:092:57:247:085:51
6:51
#5859
25.2M
25.20 mi13:25:402:59:557:082:31
7:18
#5781
Finish
26.22 mi13:32:053:06:207:076:25
6:18
#5547
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi71997647647615(Top 29%)930(Top 8%)930(Top 19%)
10K6.21 mi3.10 mi7987-7881017-2531017-2538984(Top 34%)1394(Top 12%)1394(Top 29%)
15K9.32 mi3.11 mi7845+142981+36981+367615(Top 29%)930(Top 8%)930(Top 19%)
20K12.43 mi3.11 mi7514+331887+94887+946770(Top 25%)725(Top 6%)725(Top 15%)
Half13.11 mi0.68 mi7507+7888-1888-17478(Top 28%)931(Top 8%)931(Top 19%)
25K15.53 mi2.42 mi7267+240829+59829+596248(Top 23%)620(Top 5%)620(Top 13%)
30K18.64 mi3.11 mi6772+495720+109720+1094789(Top 18%)372(Top 3%)372(Top 8%)
20M20.00 mi1.36 mi6592+180688+32688+324831(Top 18%)428(Top 4%)428(Top 9%)
21M21.00 mi1.00 mi6355+237634+54634+543149(Top 12%)207(Top 2%)207(Top 4%)
35K21.75 mi0.75 mi6294+61627+7627+75236(Top 20%)557(Top 5%)557(Top 11%)
23M23.00 mi1.25 mi6121+173599+28599+284165(Top 16%)349(Top 3%)349(Top 7%)
24M24.00 mi1.00 mi6015+106590+9590+94950(Top 19%)560(Top 5%)560(Top 11%)
40K24.85 mi0.85 mi5859+156563+27563+273063(Top 12%)250(Top 2%)250(Top 5%)
25.2M25.20 mi0.35 mi5781+78551+12551+123036(Top 11%)265(Top 2%)265(Top 5%)
Finish26.22 mi1.02 mi5547+234505+46505+461651(Top 6%)97(Top 0.8%)97(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

7615

Females

930

F18-39

930

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

8984

Females

1394

F18-39

1394

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

7615

Females

930

F18-39

930

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

6770

Females

725

F18-39

725

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

7478

Females

931

F18-39

931

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6248

Females

620

F18-39

620

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4789

Females

372

F18-39

372

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

4831

Females

428

F18-39

428

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3149

Females

207

F18-39

207

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5236

Females

557

F18-39

557

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4165

Females

349

F18-39

349

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

4950

Females

560

F18-39

560

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3063

Females

250

F18-39

250

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3036

Females

265

F18-39

265

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1651

Females

97

F18-39

97

Passing Analysis

Category:
Athletes Passed
2623
Passed By
971
Net Change
+1652
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7199
5K → 10K43831-788#7199#7987
10K → 15K21775+142#7987#7845
15K → 20K34716+331#7845#7514
20K → Half2518+7#7514#7507
Half → 25K2422+240#7507#7267
25K → 30K4983+495#7267#6772
30K → 20M1822+180#6772#6592
20M → 21M2370+237#6592#6355
21M → 35K698+61#6355#6294
35K → 23M1774+173#6294#6121
23M → 24M11610+106#6121#6015
24M → 40K1571+156#6015#5859
40K → 25.2M780+78#5859#5781
25.2M → Finish2351+234#5781#5547
TOTALS2623971+1652
📊

Passing Visuals

Category:
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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