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BOSTON MARATHON 2023

Kara Kniezewski

Bib: 12382•F

PA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 42%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:26
Rank: #15372
Start → 5K
25:26 | 8:11/mi
10K· 6.21 mi
50:21
Rank: #15151 (+221)
5K → 10K
24:55 | 8:01/mi
15K· 9.32 mi
1:17:20
Rank: #16493 (-1342)
10K → 15K
26:59 | 8:41/mi
20K· 12.43 mi
1:45:43
Rank: #17608 (-1115)
15K → 20K
28:23 | 9:08/mi
Half· 13.11 mi
1:50:46
Rank: #17251 (+357)
20K → Half
5:03 | 7:24/mi
25K· 15.53 mi
2:09:27
Rank: #16273 (+978)
Half → 25K
18:41 | 7:42/mi
30K· 18.64 mi
2:34:34
Rank: #15414 (+859)
25K → 30K
25:07 | 8:05/mi
20M
2:45:59
Rank: #15230 (+184)
30K → 20M
11:25 | 8:24/mi
21M
2:55:25
Rank: #15234 (-4)
20M → 21M
9:26 | 9:26/mi
35K· 21.75 mi
3:01:28
Rank: #15134 (+100)
21M → 35K
6:03 | 8:05/mi
23M
3:12:18
Rank: #15052 (+82)
35K → 23M
10:50 | 8:39/mi
24M
3:21:33
Rank: #15197 (-145)
23M → 24M
9:15 | 9:15/mi
40K· 24.85 mi
3:28:41
Rank: #15084 (+113)
24M → 40K
7:08 | 8:21/mi
25.2M
3:31:56
Rank: #15068 (+16)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:39:42
Rank: #14866 (+202)
25.2M → Finish
7:46 | 7:37/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:50:46
Pace8:27 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:48:56
Pace8:19 /mi
📊Negative Split: 1.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1325:268:1125:26
8:11
-
10K
6.21 mi11:20:0850:218:0624:55
8:01
-0:10
15K
9.32 mi11:47:071:17:208:1826:59
8:41
+0:40
20K
12.43 mi12:15:301:45:438:3028:23
9:08
+0:27
Half
13.11 mi12:20:331:50:468:275:03
7:24
-1:44
25K
15.53 mi12:39:142:09:278:2018:41
7:42
+0:18
30K
18.64 mi13:04:212:34:348:1825:07
8:05
+0:23
20M
20.00 mi13:15:462:45:598:1811:25
8:24
+0:19
21M
21.00 mi13:25:122:55:258:219:26
9:26
+1:02
35K
21.75 mi13:31:153:01:288:216:03
8:05
-1:21
23M
23.00 mi13:42:053:12:188:2210:50
8:39
+0:34
24M
24.00 mi13:51:203:21:338:249:15
9:15
+0:36
40K
24.85 mi13:58:283:28:418:247:08
8:21
-0:54
25.2M
25.20 mi14:01:433:31:568:253:15
9:25
+1:04
Finish
26.22 mi14:09:293:39:428:237:46
7:37
-1:48

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

7:24 /mi

Average Pace

8:23 /mi

Slowest Pace

9:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

56:25

26% of race

Time at Steady Pace

1:25:59

39% of race

Time at Slower Pace

1:17:18

35% of race

Average Pace: 8:23 /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 mi10:55:1325:268:1125:26
8:11
#15372
10K
6.21 mi11:20:0850:218:0624:55
8:01
#15151
15K
9.32 mi11:47:071:17:208:1826:59
8:41
#16493
20K
12.43 mi12:15:301:45:438:3028:23
9:08
#17608
Half
13.11 mi12:20:331:50:468:275:03
7:24
#17251
25K
15.53 mi12:39:142:09:278:2018:41
7:42
#16273
30K
18.64 mi13:04:212:34:348:1825:07
8:05
#15414
20M
20.00 mi13:15:462:45:598:1811:25
8:24
#15230
21M
21.00 mi13:25:122:55:258:219:26
9:26
#15234
35K
21.75 mi13:31:153:01:288:216:03
8:05
#15134
23M
23.00 mi13:42:053:12:188:2210:50
8:39
#15052
24M
24.00 mi13:51:203:21:338:249:15
9:15
#15197
40K
24.85 mi13:58:283:28:418:247:08
8:21
#15084
25.2M
25.20 mi14:01:433:31:568:253:15
9:25
#15068
Finish
26.22 mi14:09:293:39:428:237:46
7:37
#14866
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi153724882488218900(Top 71%)7040(Top 62%)7040(Top 144%)
10K6.21 mi3.10 mi15151+2214744+1384744+13814964(Top 56%)4651(Top 41%)4651(Top 95%)
15K9.32 mi3.11 mi16493-13425588-8445588-84418900(Top 71%)7040(Top 62%)7040(Top 144%)
20K12.43 mi3.11 mi17608-11156277-6896277-68920301(Top 76%)7838(Top 69%)7838(Top 160%)
Half13.11 mi0.68 mi17251+3576080+1976080+1979520(Top 36%)1700(Top 15%)1700(Top 35%)
25K15.53 mi2.42 mi16273+9785498+5825498+58210362(Top 39%)2169(Top 19%)2169(Top 44%)
30K18.64 mi3.11 mi15414+8595025+4735025+47311556(Top 43%)2936(Top 26%)2936(Top 60%)
20M20.00 mi1.36 mi15230+1844929+964929+9613059(Top 49%)3895(Top 34%)3895(Top 80%)
21M21.00 mi1.00 mi15234-44954-254954-2515658(Top 59%)5429(Top 48%)5429(Top 111%)
35K21.75 mi0.75 mi15134+1004900+544900+5412769(Top 48%)3876(Top 34%)3876(Top 79%)
23M23.00 mi1.25 mi15052+824877+234877+2314105(Top 53%)4680(Top 41%)4680(Top 96%)
24M24.00 mi1.00 mi15197-1454975-984975-9818261(Top 69%)7029(Top 62%)7029(Top 144%)
40K24.85 mi0.85 mi15084+1134926+494926+4912382(Top 47%)3882(Top 34%)3882(Top 79%)
25.2M25.20 mi0.35 mi15068+164924+24924+214860(Top 56%)5218(Top 46%)5218(Top 107%)
Finish26.22 mi1.02 mi14866+2024827+974827+979476(Top 36%)2481(Top 22%)2481(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

18900

Females

7040

F18-39

7040

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

14964

Females

4651

F18-39

4651

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

18900

Females

7040

F18-39

7040

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

20301

Females

7838

F18-39

7838

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

9520

Females

1700

F18-39

1700

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

10362

Females

2169

F18-39

2169

25K→30K

15.5 - 18.6 mi

Top 43%
×9stories
+181ft-148ft

Overall

11556

Females

2936

F18-39

2936

30K→20M

18.6 - 20.0 mi

Top 49%
×5stories
+64ft-50ft

Overall

13059

Females

3895

F18-39

3895

20M→21M

20.0 - 21.0 mi

Top 59%
×8stories
+106ft-24ft

Overall

15658

Females

5429

F18-39

5429

21M→35K

21.0 - 21.8 mi

Top 48%
×7stories
+17ft-86ft

Overall

12769

Females

3876

F18-39

3876

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

14105

Females

4680

F18-39

4680

23M→24M

23.0 - 24.0 mi

Top 69%
×6stories
+12ft-82ft

Overall

18261

Females

7029

F18-39

7029

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12382

Females

3882

F18-39

3882

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14860

Females

5218

F18-39

5218

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

9476

Females

2481

F18-39

2481

Passing Analysis

Category:
Athletes Passed
3576
Passed By
3070
Net Change
+506
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15372
5K → 10K435214+221#15372#15151
10K → 15K131355-1342#15151#16493
15K → 20K221137-1115#16493#17608
20K → Half3570+357#17608#17251
Half → 25K9780+978#17251#16273
25K → 30K8623+859#16273#15414
30K → 20M19511+184#15414#15230
20M → 21M8488-4#15230#15234
21M → 35K1044+100#15234#15134
35K → 23M11634+82#15134#15052
23M → 24M33178-145#15052#15197
24M → 40K12815+113#15197#15084
40K → 25.2M4428+16#15084#15068
25.2M → Finish2053+202#15068#14866
TOTALS35763070+506
📊

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