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BOSTON MARATHON 2023

Kirstin Zettlitz

Bib: 21841•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 46%
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:02
Rank: #16744
Start → 5K
26:02 | 8:23/mi
10K· 6.21 mi
52:05
Rank: #17094 (-350)
5K → 10K
26:03 | 8:23/mi
15K· 9.32 mi
1:18:20
Rank: #17226 (-132)
10K → 15K
26:15 | 8:27/mi
20K· 12.43 mi
1:45:08
Rank: #17324 (-98)
15K → 20K
26:48 | 8:38/mi
Half· 13.11 mi
1:50:58
Rank: #17352 (-28)
20K → Half
5:50 | 8:33/mi
25K· 15.53 mi
2:11:42
Rank: #17199 (+153)
Half → 25K
20:44 | 8:33/mi
30K· 18.64 mi
2:40:04
Rank: #17279 (-80)
25K → 30K
28:22 | 9:08/mi
20M
2:52:35
Rank: #17291 (-12)
30K → 20M
12:31 | 9:13/mi
21M
3:02:24
Rank: #17299 (-8)
20M → 21M
9:49 | 9:49/mi
35K· 21.75 mi
3:09:00
Rank: #17282 (+17)
21M → 35K
6:36 | 8:49/mi
23M
3:20:20
Rank: #17238 (+44)
35K → 23M
11:20 | 9:03/mi
24M
3:29:20
Rank: #17235 (+3)
23M → 24M
9:00 | 9:00/mi
40K· 24.85 mi
3:37:04
Rank: #17191 (+44)
24M → 40K
7:44 | 9:03/mi
25.2M
3:40:31
Rank: #17211 (-20)
40K → 25.2M
3:27 | 10:00/mi
Finish· 26.22 mi
3:49:50
Rank: #17310 (-99)
25.2M → Finish
9:19 | 9:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:58
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time1:58:52
Pace9:04 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:5626:028:2326:02
8:23
-
10K
6.21 mi11:45:5952:058:2326:03
8:23
0:00
15K
9.32 mi12:12:141:18:208:2426:15
8:27
+0:04
20K
12.43 mi12:39:021:45:088:2826:48
8:38
+0:11
Half
13.11 mi12:44:521:50:588:285:50
8:33
-0:05
25K
15.53 mi13:05:362:11:428:2920:44
8:33
0:00
30K
18.64 mi13:33:582:40:048:3528:22
9:08
+0:35
20M
20.00 mi13:46:292:52:358:3812:31
9:13
+0:05
21M
21.00 mi13:56:183:02:248:419:49
9:49
+0:36
35K
21.75 mi14:02:543:09:008:416:36
8:49
-1:00
23M
23.00 mi14:14:143:20:208:4311:20
9:03
+0:14
24M
24.00 mi14:23:143:29:208:439:00
9:00
-0:03
40K
24.85 mi14:30:583:37:048:447:44
9:03
+0:03
25.2M
25.20 mi14:34:253:40:318:453:27
10:00
+0:57
Finish
26.22 mi14:43:443:49:508:469:19
9:09
-0:51

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

8:23 /mi

Average Pace

8:46 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:36:34

94% of race

Time at Steady Pace

9:49

4% of race

Time at Slower Pace

3:27

2% of race

Average Pace: 8:46 /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 mi11:19:5626:028:2326:02
8:23
#16744
10K
6.21 mi11:45:5952:058:2326:03
8:23
#17094
15K
9.32 mi12:12:141:18:208:2426:15
8:27
#17226
20K
12.43 mi12:39:021:45:088:2826:48
8:38
#17324
Half
13.11 mi12:44:521:50:588:285:50
8:33
#17352
25K
15.53 mi13:05:362:11:428:2920:44
8:33
#17199
30K
18.64 mi13:33:582:40:048:3528:22
9:08
#17279
20M
20.00 mi13:46:292:52:358:3812:31
9:13
#17291
21M
21.00 mi13:56:183:02:248:419:49
9:49
#17299
35K
21.75 mi14:02:543:09:008:416:36
8:49
#17282
23M
23.00 mi14:14:143:20:208:4311:20
9:03
#17238
24M
24.00 mi14:23:143:29:208:439:00
9:00
#17235
40K
24.85 mi14:30:583:37:048:447:44
9:03
#17191
25.2M
25.20 mi14:34:253:40:318:453:27
10:00
#17211
Finish
26.22 mi14:43:443:49:508:469:19
9:09
#17310
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi167445759575917469(Top 66%)6193(Top 54%)6193(Top 341%)
10K6.21 mi3.10 mi17094-3505981-2225981-22217495(Top 66%)6180(Top 54%)6180(Top 340%)
15K9.32 mi3.11 mi17226-1326048-676048-6717469(Top 66%)6193(Top 54%)6193(Top 341%)
20K12.43 mi3.11 mi17324-986123-756123-7517663(Top 66%)6325(Top 55%)6325(Top 348%)
Half13.11 mi0.68 mi17352-286133-106133-1018028(Top 68%)6492(Top 57%)6492(Top 357%)
25K15.53 mi2.42 mi17199+1536061+726061+7216516(Top 62%)5735(Top 50%)5735(Top 316%)
30K18.64 mi3.11 mi17279-806125-646125-6417840(Top 67%)6549(Top 57%)6549(Top 360%)
20M20.00 mi1.36 mi17291-126150-256150-2517609(Top 66%)6521(Top 57%)6521(Top 359%)
21M21.00 mi1.00 mi17299-86175-256175-2517336(Top 65%)6393(Top 56%)6393(Top 352%)
35K21.75 mi0.75 mi17282+176172+36172+317081(Top 64%)6319(Top 55%)6319(Top 348%)
23M23.00 mi1.25 mi17238+446163+96163+916338(Top 61%)5938(Top 52%)5938(Top 327%)
24M24.00 mi1.00 mi17235+36168-56168-517252(Top 65%)6490(Top 57%)6490(Top 357%)
40K24.85 mi0.85 mi17191+446169-16169-116420(Top 62%)6093(Top 53%)6093(Top 335%)
25.2M25.20 mi0.35 mi17211-206185-166185-1617430(Top 65%)6663(Top 58%)6663(Top 367%)
Finish26.22 mi1.02 mi17310-996251-666251-6618663(Top 70%)7256(Top 64%)7256(Top 399%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

17469

Females

6193

F45-49

6193

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

17495

Females

6180

F45-49

6180

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

17469

Females

6193

F45-49

6193

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

17663

Females

6325

F45-49

6325

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

18028

Females

6492

F45-49

6492

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

16516

Females

5735

F45-49

5735

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

17840

Females

6549

F45-49

6549

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

17609

Females

6521

F45-49

6521

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

17336

Females

6393

F45-49

6393

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

17081

Females

6319

F45-49

6319

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

16338

Females

5938

F45-49

5938

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

17252

Females

6490

F45-49

6490

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16420

Females

6093

F45-49

6093

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17430

Females

6663

F45-49

6663

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

18663

Females

7256

F45-49

7256

Passing Analysis

Category:
Athletes Passed
1321
Passed By
1887
Net Change
-566
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16744
5K → 10K175525-350#16744#17094
10K → 15K136268-132#17094#17226
15K → 20K135233-98#17226#17324
20K → Half1846-28#17324#17352
Half → 25K19744+153#17352#17199
25K → 30K148228-80#17199#17279
30K → 20M8294-12#17279#17291
20M → 21M7886-8#17291#17299
21M → 35K5639+17#17299#17282
35K → 23M10056+44#17282#17238
23M → 24M6764+3#17238#17235
24M → 40K8541+44#17235#17191
40K → 25.2M1535-20#17191#17211
25.2M → Finish29128-99#17211#17310
TOTALS13211887-566
📊

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