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BOSTON MARATHON 2023

Karlee Zywusko

MD

Bib: 16903 F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 38%
Gender (Female)
#0 / 11423
Top 19%
Division (F18-39)
#0 / 4884
Top 33%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:57/mi
24:43
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:46/mi
48:51
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:48/mi
1:13:06
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:48/mi
1:37:19
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:45/mi
1:42:36
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:44/mi
2:01:21
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:47/mi
2:25:33
↑ 181↓ 1480.2%
138 ft elev
20M
7:44/mi
2:36:04
↑ 64↓ 500.2%
148 ft elev
21M
8:00/mi
2:44:04
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:30/mi
2:49:41
↑ 17↓ 861.7%
156 ft elev
23M
7:39/mi
2:59:16
↑ 23↓ 630.6%
116 ft elev
24M
7:32/mi
3:06:48
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:29/mi
3:13:12
↓ 200.3%
20 ft elev
25.2M
7:47/mi
3:15:53
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:09/mi
3:23:10
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:42:367:50 /mi+2.0%
2nd Half
1:40:347:40 /mi✓ faster
Negative split — 2.0% faster in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2824:437:5724:43
7:57
-
10K
6.21 mi11:41:3648:517:5224:08
7:46
-0:11
15K
9.32 mi12:05:511:13:067:5124:15
7:48
+0:02
20K
12.43 mi12:30:041:37:197:5024:13
7:48
0:00
Half
13.11 mi12:35:211:42:367:505:17
7:45
-0:03
25K
15.53 mi12:54:062:01:217:4918:45
7:44
-0:01
30K
18.64 mi13:18:182:25:337:4824:12
7:47
+0:03
20M
20.00 mi13:28:492:36:047:4810:31
7:44
-0:03
21M
21.00 mi13:36:492:44:047:498:00
8:00
+0:16
35K
21.75 mi13:42:262:49:417:485:37
7:30
-0:30
23M
23.00 mi13:52:012:59:167:489:35
7:39
+0:09
24M
24.00 mi13:59:333:06:487:477:32
7:32
-0:07
40K
24.85 mi14:05:573:13:127:466:24
7:29
-0:03
25.2M
25.20 mi14:08:383:15:537:462:41
7:47
+0:18
Finish
26.22 mi14:15:553:23:107:457:17
7:09
-0:38

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

7:09 /mi

Average Pace

7:45 /mi

Slowest Pace

8:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:27

84% of race

Time at Steady Pace

32:43

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:45 /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 mi11:17:2824:437:5724:43
7:57
#13692
10K
6.21 mi11:41:3648:517:5224:08
7:46
#13286
15K
9.32 mi12:05:511:13:067:5124:15
7:48
#13063
20K
12.43 mi12:30:041:37:197:5024:13
7:48
#12673
Half
13.11 mi12:35:211:42:367:505:17
7:45
#12630
25K
15.53 mi12:54:062:01:217:4918:45
7:44
#12282
30K
18.64 mi13:18:182:25:337:4824:12
7:47
#11687
20M
20.00 mi13:28:492:36:047:4810:31
7:44
#11388
21M
21.00 mi13:36:492:44:047:498:00
8:00
#11102
35K
21.75 mi13:42:262:49:417:485:37
7:30
#10993
23M
23.00 mi13:52:012:59:167:489:35
7:39
#10769
24M
24.00 mi13:59:333:06:487:477:32
7:32
#10614
40K
24.85 mi14:05:573:13:127:466:24
7:29
#10422
25.2M
25.20 mi14:08:383:15:537:462:41
7:47
#10313
Finish
26.22 mi14:15:553:23:107:457:17
7:09
#10090
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi13692383438341277233283328
10K6.21 mi3.10 mi13286+4063617+2173617+2171284833373337
15K9.32 mi3.11 mi13063+2233497+1203497+1201277233283328
20K12.43 mi3.11 mi12673+3903294+2033294+2031169527852785
Half13.11 mi0.68 mi12630+433277+173277+171224530373037
25K15.53 mi2.42 mi12282+3483103+1743103+1741057022652265
30K18.64 mi3.11 mi11687+5952800+3032800+303929618371837
20M20.00 mi1.36 mi11388+2992648+1522648+152847215961596
21M21.00 mi1.00 mi11102+2862512+1362512+136738512811281
35K21.75 mi0.75 mi10993+1092471+412471+41863317521752
23M23.00 mi1.25 mi10769+2242390+812390+81749113781378
24M24.00 mi1.00 mi10614+1552332+582332+58797016701670
40K24.85 mi0.85 mi10422+1922268+642268+64668412501250
25.2M25.20 mi0.35 mi10313+1092219+492219+495397889889
Finish26.22 mi1.02 mi10090+2232142+772142+77613511171117

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

12772

Females

3328

F18-39

3328

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

12848

Females

3337

F18-39

3337

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

12772

Females

3328

F18-39

3328

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

11695

Females

2785

F18-39

2785

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12245

Females

3037

F18-39

3037

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

10570

Females

2265

F18-39

2265

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

9296

Females

1837

F18-39

1837

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

8472

Females

1596

F18-39

1596

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7385

Females

1281

F18-39

1281

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

8633

Females

1752

F18-39

1752

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7491

Females

1378

F18-39

1378

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

7970

Females

1670

F18-39

1670

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6684

Females

1250

F18-39

1250

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5397

Females

889

F18-39

889

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6135

Females

1117

F18-39

1117

Passing Analysis

Category:
Athletes Passed
3959
Passed By
357
Net Change
+3602
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13692
5K → 10K553147+406#13692#13286
10K → 15K330107+223#13286#13063
15K → 20K42232+390#13063#12673
20K → Half5815+43#12673#12630
Half → 25K35810+348#12630#12282
25K → 30K6016+595#12282#11687
30K → 20M3012+299#11687#11388
20M → 21M2893+286#11388#11102
21M → 35K1189+109#11102#10993
35K → 23M2306+224#10993#10769
23M → 24M1638+155#10769#10614
24M → 40K1997+192#10614#10422
40K → 25.2M1090+109#10422#10313
25.2M → Finish2285+223#10313#10090
TOTALS3959357+3602

Passing Charts

Category:
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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