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BOSTON MARATHON 2023

Kate Low

Bib: 11787•F

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 39%
Masters (Masters Women)
#0 / 6539
Top 26%
Division (F40-44)
#0 / 1878
Top 46%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:09
Rank: #14689
Start → 5K
25:09 | 8:06/mi
10K· 6.21 mi
50:35
Rank: #15395 (-706)
5K → 10K
25:26 | 8:11/mi
15K· 9.32 mi
1:16:11
Rank: #15628 (-233)
10K → 15K
25:36 | 8:14/mi
20K· 12.43 mi
1:42:08
Rank: #15704 (-76)
15K → 20K
25:57 | 8:21/mi
Half· 13.11 mi
1:47:49
Rank: #15752 (-48)
20K → Half
5:41 | 8:20/mi
25K· 15.53 mi
2:08:07
Rank: #15668 (+84)
Half → 25K
20:18 | 8:22/mi
30K· 18.64 mi
2:34:34
Rank: #15412 (+256)
25K → 30K
26:27 | 8:31/mi
20M
2:46:04
Rank: #15261 (+151)
30K → 20M
11:30 | 8:28/mi
21M
2:54:44
Rank: #15027 (+234)
20M → 21M
8:40 | 8:40/mi
35K· 21.75 mi
3:00:57
Rank: #14983 (+44)
21M → 35K
6:13 | 8:19/mi
23M
3:11:14
Rank: #14771 (+212)
35K → 23M
10:17 | 8:13/mi
24M
3:19:16
Rank: #14595 (+176)
23M → 24M
8:02 | 8:02/mi
40K· 24.85 mi
3:26:12
Rank: #14451 (+144)
24M → 40K
6:56 | 8:07/mi
25.2M
3:29:12
Rank: #14383 (+68)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:37:17
Rank: #14264 (+119)
25.2M → Finish
8:05 | 7:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:49
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time1:49:28
Pace8:21 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3125:098:0625:09
8:06
-
10K
6.21 mi11:17:5750:358:0825:26
8:11
+0:05
15K
9.32 mi11:43:331:16:118:1025:36
8:14
+0:03
20K
12.43 mi12:09:301:42:088:1325:57
8:21
+0:07
Half
13.11 mi12:15:111:47:498:135:41
8:20
-0:01
25K
15.53 mi12:35:292:08:078:1520:18
8:22
+0:02
30K
18.64 mi13:01:562:34:348:1826:27
8:31
+0:09
20M
20.00 mi13:13:262:46:048:1811:30
8:28
-0:03
21M
21.00 mi13:22:062:54:448:198:40
8:40
+0:12
35K
21.75 mi13:28:193:00:578:196:13
8:19
-0:21
23M
23.00 mi13:38:363:11:148:1910:17
8:13
-0:06
24M
24.00 mi13:46:383:19:168:188:02
8:02
-0:11
40K
24.85 mi13:53:343:26:128:186:56
8:07
+0:05
25.2M
25.20 mi13:56:343:29:128:183:00
8:42
+0:35
Finish
26.22 mi14:04:393:37:178:188:05
7:56
-0:46

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

7:56 /mi

Average Pace

8:18 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:44

53% of race

Time at Steady Pace

1:41:33

47% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:17 /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 mi10:52:3125:098:0625:09
8:06
#14689
10K
6.21 mi11:17:5750:358:0825:26
8:11
#15395
15K
9.32 mi11:43:331:16:118:1025:36
8:14
#15628
20K
12.43 mi12:09:301:42:088:1325:57
8:21
#15704
Half
13.11 mi12:15:111:47:498:135:41
8:20
#15752
25K
15.53 mi12:35:292:08:078:1520:18
8:22
#15668
30K
18.64 mi13:01:562:34:348:1826:27
8:31
#15412
20M
20.00 mi13:13:262:46:048:1811:30
8:28
#15261
21M
21.00 mi13:22:062:54:448:198:40
8:40
#15027
35K
21.75 mi13:28:193:00:578:196:13
8:19
#14983
23M
23.00 mi13:38:363:11:148:1910:17
8:13
#14771
24M
24.00 mi13:46:383:19:168:188:02
8:02
#14595
40K
24.85 mi13:53:343:26:128:186:56
8:07
#14451
25.2M
25.20 mi13:56:343:29:128:183:00
8:42
#14383
Finish
26.22 mi14:04:393:37:178:188:05
7:56
#14264
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi146894445444516142(Top 61%)5375(Top 47%)5375(Top 286%)
10K6.21 mi3.10 mi15395-7064898-4534898-45316156(Top 61%)5371(Top 47%)5371(Top 286%)
15K9.32 mi3.11 mi15628-2335053-1555053-15516142(Top 61%)5375(Top 47%)5375(Top 286%)
20K12.43 mi3.11 mi15704-765118-655118-6515950(Top 60%)5316(Top 47%)5316(Top 283%)
Half13.11 mi0.68 mi15752-485153-355153-3516672(Top 63%)5683(Top 50%)5683(Top 303%)
25K15.53 mi2.42 mi15668+845129+245129+2415416(Top 58%)5088(Top 45%)5088(Top 271%)
30K18.64 mi3.11 mi15412+2565023+1065023+10614411(Top 54%)4568(Top 40%)4568(Top 243%)
20M20.00 mi1.36 mi15261+1514948+754948+7513441(Top 50%)4101(Top 36%)4101(Top 218%)
21M21.00 mi1.00 mi15027+2344813+1354813+13511505(Top 43%)3156(Top 28%)3156(Top 168%)
35K21.75 mi0.75 mi14983+444803+104803+1014176(Top 53%)4656(Top 41%)4656(Top 248%)
23M23.00 mi1.25 mi14771+2124699+1044699+10411317(Top 43%)3178(Top 28%)3178(Top 169%)
24M24.00 mi1.00 mi14595+1764610+894610+8911523(Top 43%)3354(Top 29%)3354(Top 179%)
40K24.85 mi0.85 mi14451+1444546+644546+6410821(Top 41%)3069(Top 27%)3069(Top 163%)
25.2M25.20 mi0.35 mi14383+684516+304516+3010861(Top 41%)3135(Top 27%)3135(Top 167%)
Finish26.22 mi1.02 mi14264+1194466+504466+5011665(Top 44%)3536(Top 31%)3536(Top 188%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

16142

Females

5375

F40-44

5375

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

16156

Females

5371

F40-44

5371

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

16142

Females

5375

F40-44

5375

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

15950

Females

5316

F40-44

5316

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

16672

Females

5683

F40-44

5683

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

15416

Females

5088

F40-44

5088

25K→30K

15.5 - 18.6 mi

Top 54%
×9stories
+181ft-148ft

Overall

14411

Females

4568

F40-44

4568

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

13441

Females

4101

F40-44

4101

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

11505

Females

3156

F40-44

3156

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

14176

Females

4656

F40-44

4656

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

11317

Females

3178

F40-44

3178

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

11523

Females

3354

F40-44

3354

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10821

Females

3069

F40-44

3069

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10861

Females

3135

F40-44

3135

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11665

Females

3536

F40-44

3536

Passing Analysis

Category:
Athletes Passed
2085
Passed By
1660
Net Change
+425
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14689
5K → 10K83789-706#14689#15395
10K → 15K100333-233#15395#15628
15K → 20K156232-76#15628#15704
20K → Half1462-48#15704#15752
Half → 25K17187+84#15752#15668
25K → 30K31761+256#15668#15412
30K → 20M17322+151#15412#15261
20M → 21M2384+234#15261#15027
21M → 35K7531+44#15027#14983
35K → 23M22210+212#14983#14771
23M → 24M1804+176#14771#14595
24M → 40K1539+144#14595#14451
40K → 25.2M713+68#14451#14383
25.2M → Finish13213+119#14383#14264
TOTALS20851660+425
📊

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