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BOSTON MARATHON 2023

Robyn Zislin

Bib: 31348•F

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:15
Rank: #23570
Start → 5K
31:15 | 10:04/mi
10K· 6.21 mi
1:01:35
Rank: #23410 (+160)
5K → 10K
30:20 | 9:46/mi
15K· 9.32 mi
1:31:32
Rank: #23201 (+209)
10K → 15K
29:57 | 9:38/mi
20K· 12.43 mi
2:01:26
Rank: #22852 (+349)
15K → 20K
29:54 | 9:37/mi
Half· 13.11 mi
2:07:56
Rank: #22817 (+35)
20K → Half
6:30 | 9:32/mi
25K· 15.53 mi
2:31:44
Rank: #22635 (+182)
Half → 25K
23:48 | 9:49/mi
30K· 18.64 mi
3:03:38
Rank: #22447 (+188)
25K → 30K
31:54 | 10:16/mi
20M
3:17:30
Rank: #22346 (+101)
30K → 20M
13:52 | 10:12/mi
21M
3:28:39
Rank: #22262 (+84)
20M → 21M
11:09 | 11:09/mi
35K· 21.75 mi
3:36:16
Rank: #22233 (+29)
21M → 35K
7:37 | 10:11/mi
23M
3:49:02
Rank: #22137 (+96)
35K → 23M
12:46 | 10:12/mi
24M
3:59:43
Rank: #22153 (-16)
23M → 24M
10:41 | 10:41/mi
40K· 24.85 mi
4:09:04
Rank: #22156 (-3)
24M → 40K
9:21 | 10:56/mi
25.2M
4:13:22
Rank: #22180 (-24)
40K → 25.2M
4:18 | 12:28/mi
Finish· 26.22 mi
4:23:51
Rank: #22194 (-14)
25.2M → Finish
10:29 | 10:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:56
Pace9:46 /mi
2nd Half
Distance13.11 mi
Time2:15:55
Pace10:22 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:3831:1510:0431:15
10:04
-
10K
6.21 mi12:21:581:01:359:5530:20
9:46
-0:18
15K
9.32 mi12:51:551:31:329:4929:57
9:38
-0:08
20K
12.43 mi13:21:492:01:269:4629:54
9:37
-0:01
Half
13.11 mi13:28:192:07:569:466:30
9:32
-0:05
25K
15.53 mi13:52:072:31:449:4623:48
9:49
+0:17
30K
18.64 mi14:24:013:03:389:5131:54
10:16
+0:27
20M
20.00 mi14:37:533:17:309:5213:52
10:12
-0:04
21M
21.00 mi14:49:023:28:399:5611:09
11:09
+0:57
35K
21.75 mi14:56:393:36:169:577:37
10:11
-0:58
23M
23.00 mi15:09:253:49:029:5712:46
10:12
+0:01
24M
24.00 mi15:20:063:59:439:5910:41
10:41
+0:29
40K
24.85 mi15:29:274:09:0410:019:21
10:56
+0:15
25.2M
25.20 mi15:33:454:13:2210:034:18
12:28
+1:32
Finish
26.22 mi15:44:144:23:5110:0410:29
10:17
-2:11

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

9:32 /mi

Average Pace

10:04 /mi

Slowest Pace

12:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:29

46% of race

Time at Steady Pace

1:47:53

41% of race

Time at Slower Pace

35:29

13% of race

Average Pace: 10:04 /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 mi11:51:3831:1510:0431:15
10:04
#23570
10K
6.21 mi12:21:581:01:359:5530:20
9:46
#23410
15K
9.32 mi12:51:551:31:329:4929:57
9:38
#23201
20K
12.43 mi13:21:492:01:269:4629:54
9:37
#22852
Half
13.11 mi13:28:192:07:569:466:30
9:32
#22817
25K
15.53 mi13:52:072:31:449:4623:48
9:49
#22635
30K
18.64 mi14:24:013:03:389:5131:54
10:16
#22447
20M
20.00 mi14:37:533:17:309:5213:52
10:12
#22346
21M
21.00 mi14:49:023:28:399:5611:09
11:09
#22262
35K
21.75 mi14:56:393:36:169:577:37
10:11
#22233
23M
23.00 mi15:09:253:49:029:5712:46
10:12
#22137
24M
24.00 mi15:20:063:59:439:5910:41
10:41
#22153
40K
24.85 mi15:29:274:09:0410:019:21
10:56
#22156
25.2M
25.20 mi15:33:454:13:2210:034:18
12:28
#22180
Finish
26.22 mi15:44:144:23:5110:0410:29
10:17
#22194
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi235709684968422634(Top 85%)9147(Top 80%)9147(Top 187%)
10K6.21 mi3.10 mi23410+1609577+1079577+10723201(Top 87%)9444(Top 83%)9444(Top 193%)
15K9.32 mi3.11 mi23201+2099455+1229455+12222634(Top 85%)9147(Top 80%)9147(Top 187%)
20K12.43 mi3.11 mi22852+3499273+1829273+18221935(Top 82%)8762(Top 77%)8762(Top 179%)
Half13.11 mi0.68 mi22817+359248+259248+2522219(Top 83%)8906(Top 78%)8906(Top 182%)
25K15.53 mi2.42 mi22635+1829169+799169+7921780(Top 82%)8714(Top 76%)8714(Top 178%)
30K18.64 mi3.11 mi22447+1889089+809089+8021715(Top 82%)8748(Top 77%)8748(Top 179%)
20M20.00 mi1.36 mi22346+1019037+529037+5221039(Top 79%)8435(Top 74%)8435(Top 173%)
21M21.00 mi1.00 mi22262+849006+319006+3121168(Top 80%)8553(Top 75%)8553(Top 175%)
35K21.75 mi0.75 mi22233+298991+158991+1521754(Top 82%)8908(Top 78%)8908(Top 182%)
23M23.00 mi1.25 mi22137+968948+438948+4320575(Top 77%)8284(Top 73%)8284(Top 170%)
24M24.00 mi1.00 mi22153-168970-228970-2222425(Top 84%)9324(Top 82%)9324(Top 191%)
40K24.85 mi0.85 mi22156-38972-28972-222226(Top 83%)9252(Top 81%)9252(Top 189%)
25.2M25.20 mi0.35 mi22180-248992-208992-2023241(Top 87%)9787(Top 86%)9787(Top 200%)
Finish26.22 mi1.02 mi22194-149006-149006-1422532(Top 85%)9407(Top 82%)9407(Top 193%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

22634

Females

9147

F18-39

9147

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

23201

Females

9444

F18-39

9444

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

22634

Females

9147

F18-39

9147

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

21935

Females

8762

F18-39

8762

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

22219

Females

8906

F18-39

8906

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

21780

Females

8714

F18-39

8714

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

21715

Females

8748

F18-39

8748

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

21039

Females

8435

F18-39

8435

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

21168

Females

8553

F18-39

8553

21M→35K

21.0 - 21.8 mi

Top 82%
×7stories
+17ft-86ft

Overall

21754

Females

8908

F18-39

8908

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

20575

Females

8284

F18-39

8284

23M→24M

23.0 - 24.0 mi

Top 84%
×6stories
+12ft-82ft

Overall

22425

Females

9324

F18-39

9324

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22226

Females

9252

F18-39

9252

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

23241

Females

9787

F18-39

9787

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

22532

Females

9407

F18-39

9407

Passing Analysis

Category:
Athletes Passed
1869
Passed By
493
Net Change
+1376
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23570
5K → 10K307147+160#23570#23410
10K → 15K25344+209#23410#23201
15K → 20K3578+349#23201#22852
20K → Half4813+35#22852#22817
Half → 25K19614+182#22817#22635
25K → 30K22335+188#22635#22447
30K → 20M11716+101#22447#22346
20M → 21M10218+84#22346#22262
21M → 35K5021+29#22262#22233
35K → 23M1059+96#22233#22137
23M → 24M3753-16#22137#22153
24M → 40K3639-3#22153#22156
40K → 25.2M1034-24#22156#22180
25.2M → Finish2842-14#22180#22194
TOTALS1869493+1376
📊

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