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BOSTON MARATHON 2023

Liz Ozeki

Bib: 12063•F

MD

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 15%
Gender (Female)
#0 / 11423
Top 2%
Division (F18-39)
#0 / 4884
Top 4%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:30
Rank: #7757
Start → 5K
22:30 | 7:15/mi
10K· 6.21 mi
43:20
Rank: #6354 (+1403)
5K → 10K
20:50 | 6:42/mi
15K· 9.32 mi
1:03:45
Rank: #5370 (+984)
10K → 15K
20:25 | 6:34/mi
20K· 12.43 mi
1:24:22
Rank: #4733 (+637)
15K → 20K
20:37 | 6:38/mi
Half· 13.11 mi
1:28:51
Rank: #4633 (+100)
20K → Half
4:29 | 6:34/mi
25K· 15.53 mi
1:45:08
Rank: #4393 (+240)
Half → 25K
16:17 | 6:43/mi
30K· 18.64 mi
2:06:51
Rank: #4352 (+41)
25K → 30K
21:43 | 6:59/mi
20M
2:16:13
Rank: #4257 (+95)
30K → 20M
9:22 | 6:54/mi
21M
2:23:24
Rank: #4132 (+125)
20M → 21M
7:11 | 7:11/mi
35K· 21.75 mi
2:28:24
Rank: #4083 (+49)
21M → 35K
5:00 | 6:41/mi
23M
2:37:03
Rank: #4007 (+76)
35K → 23M
8:39 | 6:55/mi
24M
2:43:45
Rank: #3945 (+62)
23M → 24M
6:42 | 6:42/mi
40K· 24.85 mi
2:49:40
Rank: #3906 (+39)
24M → 40K
5:55 | 6:55/mi
25.2M
2:52:18
Rank: #3921 (-15)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
2:59:25
Rank: #4006 (-85)
25.2M → Finish
7:07 | 6:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:51
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time1:30:34
Pace6:55 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3022:307:1522:30
7:15
-
10K
6.21 mi11:11:2043:206:5820:50
6:42
-0:33
15K
9.32 mi11:31:451:03:456:5020:25
6:34
-0:08
20K
12.43 mi11:52:221:24:226:4720:37
6:38
+0:04
Half
13.11 mi11:56:511:28:516:474:29
6:34
-0:04
25K
15.53 mi12:13:081:45:086:4616:17
6:43
+0:09
30K
18.64 mi12:34:512:06:516:4821:43
6:59
+0:16
20M
20.00 mi12:44:132:16:136:499:22
6:54
-0:05
21M
21.00 mi12:51:242:23:246:507:11
7:11
+0:17
35K
21.75 mi12:56:242:28:246:495:00
6:41
-0:30
23M
23.00 mi13:05:032:37:036:508:39
6:55
+0:14
24M
24.00 mi13:11:452:43:456:496:42
6:42
-0:13
40K
24.85 mi13:17:402:49:406:505:55
6:55
+0:13
25.2M
25.20 mi13:20:182:52:186:502:38
7:38
+0:43
Finish
26.22 mi13:27:252:59:256:517:07
6:59
-0:39

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

6:34 /mi

Average Pace

6:51 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:17

86% of race

Time at Steady Pace

25:08

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:51 /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 mi10:50:3022:307:1522:30
7:15
#7757
10K
6.21 mi11:11:2043:206:5820:50
6:42
#6354
15K
9.32 mi11:31:451:03:456:5020:25
6:34
#5370
20K
12.43 mi11:52:221:24:226:4720:37
6:38
#4733
Half
13.11 mi11:56:511:28:516:474:29
6:34
#4633
25K
15.53 mi12:13:081:45:086:4616:17
6:43
#4393
30K
18.64 mi12:34:512:06:516:4821:43
6:59
#4352
20M
20.00 mi12:44:132:16:136:499:22
6:54
#4257
21M
21.00 mi12:51:242:23:246:507:11
7:11
#4132
35K
21.75 mi12:56:242:28:246:495:00
6:41
#4083
23M
23.00 mi13:05:032:37:036:508:39
6:55
#4007
24M
24.00 mi13:11:452:43:456:496:42
6:42
#3945
40K
24.85 mi13:17:402:49:406:505:55
6:55
#3906
25.2M
25.20 mi13:20:182:52:186:502:38
7:38
#3921
Finish
26.22 mi13:27:252:59:256:517:07
6:59
#4006
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi77579279273084(Top 12%)142(Top 1%)142(Top 3%)
10K6.21 mi3.10 mi6354+1403586+341586+3414410(Top 17%)279(Top 2%)279(Top 6%)
15K9.32 mi3.11 mi5370+984397+189397+1893084(Top 12%)142(Top 1%)142(Top 3%)
20K12.43 mi3.11 mi4733+637314+83314+833095(Top 12%)151(Top 1%)151(Top 3%)
Half13.11 mi0.68 mi4633+100307+7307+73306(Top 12%)158(Top 1%)158(Top 3%)
25K15.53 mi2.42 mi4393+240278+29278+293514(Top 13%)191(Top 2%)191(Top 4%)
30K18.64 mi3.11 mi4352+41277+1277+14295(Top 16%)296(Top 3%)296(Top 6%)
20M20.00 mi1.36 mi4257+95263+14263+143407(Top 13%)222(Top 2%)222(Top 5%)
21M21.00 mi1.00 mi4132+125255+8255+83043(Top 11%)191(Top 2%)191(Top 4%)
35K21.75 mi0.75 mi4083+49252+3252+33522(Top 13%)254(Top 2%)254(Top 5%)
23M23.00 mi1.25 mi4007+76247+5247+53325(Top 12%)239(Top 2%)239(Top 5%)
24M24.00 mi1.00 mi3945+62246+1246+13138(Top 12%)225(Top 2%)225(Top 5%)
40K24.85 mi0.85 mi3906+39245+1245+13466(Top 13%)301(Top 3%)301(Top 6%)
25.2M25.20 mi0.35 mi3921-152452454618(Top 17%)590(Top 5%)590(Top 12%)
Finish26.22 mi1.02 mi4006-85254-9254-95128(Top 19%)765(Top 7%)765(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3084

Females

142

F18-39

142

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4410

Females

279

F18-39

279

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3084

Females

142

F18-39

142

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3095

Females

151

F18-39

151

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3306

Females

158

F18-39

158

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3514

Females

191

F18-39

191

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4295

Females

296

F18-39

296

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3407

Females

222

F18-39

222

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3043

Females

191

F18-39

191

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3522

Females

254

F18-39

254

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3325

Females

239

F18-39

239

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3138

Females

225

F18-39

225

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3466

Females

301

F18-39

301

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4618

Females

590

F18-39

590

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5128

Females

765

F18-39

765

Passing Analysis

Category:
Athletes Passed
4114
Passed By
363
Net Change
+3751
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7757
5K → 10K14041+1403#7757#6354
10K → 15K9840+984#6354#5370
15K → 20K6381+637#5370#4733
20K → Half1000+100#4733#4633
Half → 25K25010+240#4633#4393
25K → 30K12988+41#4393#4352
30K → 20M11722+95#4352#4257
20M → 21M13611+125#4257#4132
21M → 35K6011+49#4132#4083
35K → 23M10428+76#4083#4007
23M → 24M8220+62#4007#3945
24M → 40K6425+39#3945#3906
40K → 25.2M2338-15#3906#3921
25.2M → Finish23108-85#3921#4006
TOTALS4114363+3751
📊

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