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BOSTON MARATHON 2023

Kristin Borowski

Bib: 26951•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:46
Rank: #23204
Start → 5K
30:46 | 9:54/mi
10K· 6.21 mi
59:37
Rank: #22592 (+612)
5K → 10K
28:51 | 9:17/mi
15K· 9.32 mi
1:28:35
Rank: #22328 (+264)
10K → 15K
28:58 | 9:19/mi
20K· 12.43 mi
1:57:58
Rank: #22081 (+247)
15K → 20K
29:23 | 9:27/mi
Half· 13.11 mi
2:04:26
Rank: #22079 (+2)
20K → Half
6:28 | 9:29/mi
25K· 15.53 mi
2:27:43
Rank: #21923 (+156)
Half → 25K
23:17 | 9:36/mi
30K· 18.64 mi
2:58:15
Rank: #21653 (+270)
25K → 30K
30:32 | 9:50/mi
20M
3:11:28
Rank: #21517 (+136)
30K → 20M
13:13 | 9:44/mi
21M
3:21:17
Rank: #21297 (+220)
20M → 21M
9:49 | 9:49/mi
35K· 21.75 mi
3:28:14
Rank: #21221 (+76)
21M → 35K
6:57 | 9:17/mi
23M
3:40:21
Rank: #21069 (+152)
35K → 23M
12:07 | 9:41/mi
24M
3:49:46
Rank: #20964 (+105)
23M → 24M
9:25 | 9:25/mi
40K· 24.85 mi
3:58:22
Rank: #20913 (+51)
24M → 40K
8:36 | 10:04/mi
25.2M
4:01:56
Rank: #20874 (+39)
40K → 25.2M
3:34 | 10:21/mi
Finish· 26.22 mi
4:11:22
Rank: #20808 (+66)
25.2M → Finish
9:26 | 9:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:26
Pace9:30 /mi
2nd Half
Distance13.11 mi
Time2:06:56
Pace9:41 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:5130:469:5430:46
9:54
-
10K
6.21 mi12:17:4259:379:3628:51
9:17
-0:37
15K
9.32 mi12:46:401:28:359:3028:58
9:19
+0:02
20K
12.43 mi13:16:031:57:589:3029:23
9:27
+0:08
Half
13.11 mi13:22:312:04:269:306:28
9:29
+0:02
25K
15.53 mi13:45:482:27:439:3123:17
9:36
+0:07
30K
18.64 mi14:16:202:58:159:3430:32
9:50
+0:14
20M
20.00 mi14:29:333:11:289:3413:13
9:44
-0:06
21M
21.00 mi14:39:223:21:179:359:49
9:49
+0:05
35K
21.75 mi14:46:193:28:149:346:57
9:17
-0:32
23M
23.00 mi14:58:263:40:219:3512:07
9:41
+0:24
24M
24.00 mi15:07:513:49:469:349:25
9:25
-0:16
40K
24.85 mi15:16:273:58:229:358:36
10:04
+0:39
25.2M
25.20 mi15:20:014:01:569:363:34
10:21
+0:17
Finish
26.22 mi15:29:274:11:229:369:26
9:15
-1:06

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

9:15 /mi

Average Pace

9:36 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:07:48

99% of race

Time at Steady Pace

3:34

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:35 /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 mi11:48:5130:469:5430:46
9:54
#23204
10K
6.21 mi12:17:4259:379:3628:51
9:17
#22592
15K
9.32 mi12:46:401:28:359:3028:58
9:19
#22328
20K
12.43 mi13:16:031:57:589:3029:23
9:27
#22081
Half
13.11 mi13:22:312:04:269:306:28
9:29
#22079
25K
15.53 mi13:45:482:27:439:3123:17
9:36
#21923
30K
18.64 mi14:16:202:58:159:3430:32
9:50
#21653
20M
20.00 mi14:29:333:11:289:3413:13
9:44
#21517
21M
21.00 mi14:39:223:21:179:359:49
9:49
#21297
35K
21.75 mi14:46:193:28:149:346:57
9:17
#21221
23M
23.00 mi14:58:263:40:219:3512:07
9:41
#21069
24M
24.00 mi15:07:513:49:469:349:25
9:25
#20964
40K
24.85 mi15:16:273:58:229:358:36
10:04
#20913
25.2M
25.20 mi15:20:014:01:569:363:34
10:21
#20874
Finish
26.22 mi15:29:274:11:229:369:26
9:15
#20808
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi232049497949721715(Top 82%)8622(Top 75%)8622(Top 459%)
10K6.21 mi3.10 mi22592+6129146+3519146+35121894(Top 82%)8764(Top 77%)8764(Top 467%)
15K9.32 mi3.11 mi22328+2649002+1449002+14421715(Top 82%)8622(Top 75%)8622(Top 459%)
20K12.43 mi3.11 mi22081+2478876+1268876+12621423(Top 80%)8480(Top 74%)8480(Top 452%)
Half13.11 mi0.68 mi22079+28872+48872+422061(Top 83%)8810(Top 77%)8810(Top 469%)
25K15.53 mi2.42 mi21923+1568781+918781+9121143(Top 79%)8345(Top 73%)8345(Top 444%)
30K18.64 mi3.11 mi21653+2708639+1428639+14220531(Top 77%)8074(Top 71%)8074(Top 430%)
20M20.00 mi1.36 mi21517+1368574+658574+6519646(Top 74%)7664(Top 67%)7664(Top 408%)
21M21.00 mi1.00 mi21297+2208476+988476+9817351(Top 65%)6408(Top 56%)6408(Top 341%)
35K21.75 mi0.75 mi21221+768444+328444+3219156(Top 72%)7486(Top 66%)7486(Top 399%)
23M23.00 mi1.25 mi21069+1528371+738371+7319016(Top 71%)7422(Top 65%)7422(Top 395%)
24M24.00 mi1.00 mi20964+1058323+488323+4818936(Top 71%)7415(Top 65%)7415(Top 395%)
40K24.85 mi0.85 mi20913+518306+178306+1720146(Top 76%)8136(Top 71%)8136(Top 433%)
25.2M25.20 mi0.35 mi20874+398289+178289+1718664(Top 70%)7326(Top 64%)7326(Top 390%)
Finish26.22 mi1.02 mi20808+668262+278262+2719213(Top 72%)7567(Top 66%)7567(Top 403%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

21715

Females

8622

F40-44

8622

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

21894

Females

8764

F40-44

8764

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

21715

Females

8622

F40-44

8622

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

21423

Females

8480

F40-44

8480

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

22061

Females

8810

F40-44

8810

Half→25K

13.1 - 15.5 mi

Top 79%
×4stories
+66ft-88ft

Overall

21143

Females

8345

F40-44

8345

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

20531

Females

8074

F40-44

8074

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

19646

Females

7664

F40-44

7664

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

17351

Females

6408

F40-44

6408

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

19156

Females

7486

F40-44

7486

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

19016

Females

7422

F40-44

7422

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

18936

Females

7415

F40-44

7415

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20146

Females

8136

F40-44

8136

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18664

Females

7326

F40-44

7326

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

19213

Females

7567

F40-44

7567

Passing Analysis

Category:
Athletes Passed
2650
Passed By
254
Net Change
+2396
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23204
5K → 10K65846+612#23204#22592
10K → 15K31147+264#22592#22328
15K → 20K28134+247#22328#22081
20K → Half2624+2#22081#22079
Half → 25K17923+156#22079#21923
25K → 30K29828+270#21923#21653
30K → 20M1404+136#21653#21517
20M → 21M2233+220#21517#21297
21M → 35K804+76#21297#21221
35K → 23M1597+152#21221#21069
23M → 24M1105+105#21069#20964
24M → 40K6514+51#20964#20913
40K → 25.2M434+39#20913#20874
25.2M → Finish7711+66#20874#20808
TOTALS2650254+2396
📊

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