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BOSTON MARATHON 2023

Kristen Frentzel

Bib: 17487•F

DE

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 45%
Gender (Female)
#0 / 11423
Top 28%
Masters (Masters Women)
#0 / 6539
Top 14%
Division (F40-44)
#0 / 1878
Top 28%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:31
Rank: #10267
Start → 5K
23:31 | 7:34/mi
10K· 6.21 mi
47:36
Rank: #11445 (-1178)
5K → 10K
24:05 | 7:45/mi
15K· 9.32 mi
1:11:37
Rank: #11649 (-204)
10K → 15K
24:01 | 7:44/mi
20K· 12.43 mi
1:35:51
Rank: #11637 (+12)
15K → 20K
24:14 | 7:48/mi
Half· 13.11 mi
1:41:03
Rank: #11612 (+25)
20K → Half
5:12 | 7:37/mi
25K· 15.53 mi
1:59:59
Rank: #11483 (+129)
Half → 25K
18:56 | 7:49/mi
30K· 18.64 mi
2:25:11
Rank: #11510 (-27)
25K → 30K
25:12 | 8:07/mi
20M
2:36:16
Rank: #11482 (+28)
30K → 20M
11:05 | 8:09/mi
21M
2:45:15
Rank: #11588 (-106)
20M → 21M
8:59 | 8:59/mi
35K· 21.75 mi
2:51:20
Rank: #11659 (-71)
21M → 35K
6:05 | 8:08/mi
23M
3:02:22
Rank: #11889 (-230)
35K → 23M
11:02 | 8:49/mi
24M
3:10:45
Rank: #11979 (-90)
23M → 24M
8:23 | 8:23/mi
40K· 24.85 mi
3:17:53
Rank: #11983 (-4)
24M → 40K
7:08 | 8:21/mi
25.2M
3:20:58
Rank: #11984 (-1)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:29:18
Rank: #12047 (-63)
25.2M → Finish
8:20 | 8:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:03
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:48:15
Pace8:15 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1723:317:3423:31
7:34
-
10K
6.21 mi11:38:2247:367:4024:05
7:45
+0:11
15K
9.32 mi12:02:231:11:377:4124:01
7:44
-0:01
20K
12.43 mi12:26:371:35:517:4324:14
7:48
+0:04
Half
13.11 mi12:31:491:41:037:425:12
7:37
-0:11
25K
15.53 mi12:50:451:59:597:4318:56
7:49
+0:12
30K
18.64 mi13:15:572:25:117:4725:12
8:07
+0:18
20M
20.00 mi13:27:022:36:167:4911:05
8:09
+0:02
21M
21.00 mi13:36:012:45:157:528:59
8:59
+0:50
35K
21.75 mi13:42:062:51:207:536:05
8:08
-0:51
23M
23.00 mi13:53:083:02:227:5611:02
8:49
+0:41
24M
24.00 mi14:01:313:10:457:578:23
8:23
-0:26
40K
24.85 mi14:08:393:17:537:587:08
8:21
-0:02
25.2M
25.20 mi14:11:443:20:587:583:05
8:56
+0:35
Finish
26.22 mi14:20:043:29:187:598:20
8:11
-0:45

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

7:34 /mi

Average Pace

7:59 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:41

82% of race

Time at Steady Pace

26:33

13% of race

Time at Slower Pace

12:04

6% of race

Average Pace: 7:59 /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 mi11:14:1723:317:3423:31
7:34
#10267
10K
6.21 mi11:38:2247:367:4024:05
7:45
#11445
15K
9.32 mi12:02:231:11:377:4124:01
7:44
#11649
20K
12.43 mi12:26:371:35:517:4324:14
7:48
#11637
Half
13.11 mi12:31:491:41:037:425:12
7:37
#11612
25K
15.53 mi12:50:451:59:597:4318:56
7:49
#11483
30K
18.64 mi13:15:572:25:117:4725:12
8:07
#11510
20M
20.00 mi13:27:022:36:167:4911:05
8:09
#11482
21M
21.00 mi13:36:012:45:157:528:59
8:59
#11588
35K
21.75 mi13:42:062:51:207:536:05
8:08
#11659
23M
23.00 mi13:53:083:02:227:5611:02
8:49
#11889
24M
24.00 mi14:01:313:10:457:578:23
8:23
#11979
40K
24.85 mi14:08:393:17:537:587:08
8:21
#11983
25.2M
25.20 mi14:11:443:20:587:583:05
8:56
#11984
Finish
26.22 mi14:20:043:29:187:598:20
8:11
#12047
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi102671987198712121(Top 46%)2963(Top 26%)2963(Top 158%)
10K6.21 mi3.10 mi11445-11782575-5882575-58812706(Top 48%)3259(Top 29%)3259(Top 174%)
15K9.32 mi3.11 mi11649-2042695-1202695-12012121(Top 46%)2963(Top 26%)2963(Top 158%)
20K12.43 mi3.11 mi11637+122701-62701-611764(Top 44%)2827(Top 25%)2827(Top 151%)
Half13.11 mi0.68 mi11612+252692+92692+911302(Top 42%)2533(Top 22%)2533(Top 135%)
25K15.53 mi2.42 mi11483+1292632+602632+6011185(Top 42%)2587(Top 23%)2587(Top 138%)
30K18.64 mi3.11 mi11510-272692-602692-6011734(Top 44%)3035(Top 27%)3035(Top 162%)
20M20.00 mi1.36 mi11482+282707-152707-1511414(Top 43%)2949(Top 26%)2949(Top 157%)
21M21.00 mi1.00 mi11588-1062783-762783-7613326(Top 50%)4113(Top 36%)4113(Top 219%)
35K21.75 mi0.75 mi11659-712832-492832-4913010(Top 49%)3996(Top 35%)3996(Top 213%)
23M23.00 mi1.25 mi11889-2302986-1542986-15415056(Top 57%)5202(Top 46%)5202(Top 277%)
24M24.00 mi1.00 mi11979-903068-823068-8213771(Top 52%)4529(Top 40%)4529(Top 241%)
40K24.85 mi0.85 mi11983-43088-203088-2012352(Top 46%)3852(Top 34%)3852(Top 205%)
25.2M25.20 mi0.35 mi11984-13094-63094-612213(Top 46%)3826(Top 33%)3826(Top 204%)
Finish26.22 mi1.02 mi12047-633152-583152-5813296(Top 50%)4355(Top 38%)4355(Top 232%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21stories
+97ft-345ft

Overall

12121

Females

2963

F40-44

2963

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

12706

Females

3259

F40-44

3259

10K→15K

6.2 - 9.3 mi

Top 46%
×3stories
+67ft-78ft

Overall

12121

Females

2963

F40-44

2963

15K→20K

9.3 - 12.4 mi

Top 44%
×5stories
+106ft-86ft

Overall

11764

Females

2827

F40-44

2827

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11302

Females

2533

F40-44

2533

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

11185

Females

2587

F40-44

2587

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

11734

Females

3035

F40-44

3035

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

11414

Females

2949

F40-44

2949

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

13326

Females

4113

F40-44

4113

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

13010

Females

3996

F40-44

3996

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

15056

Females

5202

F40-44

5202

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

13771

Females

4529

F40-44

4529

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12352

Females

3852

F40-44

3852

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12213

Females

3826

F40-44

3826

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13296

Females

4355

F40-44

4355

Passing Analysis

Category:
Athletes Passed
1136
Passed By
2916
Net Change
-1780
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10267
5K → 10K421220-1178#10267#11445
10K → 15K110314-204#11445#11649
15K → 20K167155+12#11649#11637
20K → Half3813+25#11637#11612
Half → 25K19465+129#11612#11483
25K → 30K172199-27#11483#11510
30K → 20M10274+28#11510#11482
20M → 21M54160-106#11482#11588
21M → 35K32103-71#11588#11659
35K → 23M41271-230#11659#11889
23M → 24M39129-90#11889#11979
24M → 40K6367-4#11979#11983
40K → 25.2M3233-1#11983#11984
25.2M → Finish50113-63#11984#12047
TOTALS11362916-1780
📊

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