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BOSTON MARATHON 2023

Elizabeth Izzo

Bib: 14779•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 24%
Gender (Female)
#0 / 11423
Top 6%
Division (F18-39)
#0 / 4884
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:00
Rank: #4273
Start → 5K
21:00 | 6:46/mi
10K· 6.21 mi
42:05
Rank: #4733 (-460)
5K → 10K
21:05 | 6:47/mi
15K· 9.32 mi
1:03:33
Rank: #5169 (-436)
10K → 15K
21:28 | 6:55/mi
20K· 12.43 mi
1:25:35
Rank: #5610 (-441)
15K → 20K
22:02 | 7:06/mi
Half· 13.11 mi
1:30:19
Rank: #5651 (-41)
20K → Half
4:44 | 6:56/mi
25K· 15.53 mi
1:47:40
Rank: #5773 (-122)
Half → 25K
17:21 | 7:09/mi
30K· 18.64 mi
2:10:49
Rank: #5929 (-156)
25K → 30K
23:09 | 7:27/mi
20M
2:21:02
Rank: #5963 (-34)
30K → 20M
10:13 | 7:31/mi
21M
2:28:57
Rank: #5953 (+10)
20M → 21M
7:55 | 7:55/mi
35K· 21.75 mi
2:34:24
Rank: #5954 (-1)
21M → 35K
5:27 | 7:17/mi
23M
2:44:02
Rank: #5994 (-40)
35K → 23M
9:38 | 7:42/mi
24M
2:51:46
Rank: #6067 (-73)
23M → 24M
7:44 | 7:44/mi
40K· 24.85 mi
2:58:40
Rank: #6162 (-95)
24M → 40K
6:54 | 8:04/mi
25.2M
3:01:35
Rank: #6193 (-31)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:09:19
Rank: #6260 (-67)
25.2M → Finish
7:44 | 7:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:19
Pace6:53 /mi
2nd Half
Distance13.11 mi
Time1:39:00
Pace7:33 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:2621:006:4621:00
6:46
-
10K
6.21 mi11:10:3142:056:4621:05
6:47
+0:01
15K
9.32 mi11:31:591:03:336:4921:28
6:55
+0:08
20K
12.43 mi11:54:011:25:356:5322:02
7:06
+0:11
Half
13.11 mi11:58:451:30:196:534:44
6:56
-0:10
25K
15.53 mi12:16:061:47:406:5617:21
7:09
+0:13
30K
18.64 mi12:39:152:10:497:0123:09
7:27
+0:18
20M
20.00 mi12:49:282:21:027:0310:13
7:31
+0:04
21M
21.00 mi12:57:232:28:577:067:55
7:55
+0:24
35K
21.75 mi13:02:502:34:247:065:27
7:17
-0:38
23M
23.00 mi13:12:282:44:027:089:38
7:42
+0:25
24M
24.00 mi13:20:122:51:467:097:44
7:44
+0:02
40K
24.85 mi13:27:062:58:407:116:54
8:04
+0:20
25.2M
25.20 mi13:30:013:01:357:122:55
8:27
+0:23
Finish
26.22 mi13:37:453:09:197:147:44
7:35
-0:52

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

6:46 /mi

Average Pace

7:14 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:40

57% of race

Time at Steady Pace

46:33

25% of race

Time at Slower Pace

35:06

19% of race

Average Pace: 7:13 /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 mi10:49:2621:006:4621:00
6:46
#4273
10K
6.21 mi11:10:3142:056:4621:05
6:47
#4733
15K
9.32 mi11:31:591:03:336:4921:28
6:55
#5169
20K
12.43 mi11:54:011:25:356:5322:02
7:06
#5610
Half
13.11 mi11:58:451:30:196:534:44
6:56
#5651
25K
15.53 mi12:16:061:47:406:5617:21
7:09
#5773
30K
18.64 mi12:39:152:10:497:0123:09
7:27
#5929
20M
20.00 mi12:49:282:21:027:0310:13
7:31
#5963
21M
21.00 mi12:57:232:28:577:067:55
7:55
#5953
35K
21.75 mi13:02:502:34:247:065:27
7:17
#5954
23M
23.00 mi13:12:282:44:027:089:38
7:42
#5994
24M
24.00 mi13:20:122:51:467:097:44
7:44
#6067
40K
24.85 mi13:27:062:58:407:116:54
8:04
#6162
25.2M
25.20 mi13:30:013:01:357:122:55
8:27
#6193
Finish
26.22 mi13:37:453:09:197:147:44
7:35
#6260
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi42732762766040(Top 23%)545(Top 5%)545(Top 11%)
10K6.21 mi3.10 mi4733-460317-41317-415180(Top 19%)384(Top 3%)384(Top 8%)
15K9.32 mi3.11 mi5169-436371-54371-546040(Top 23%)545(Top 5%)545(Top 11%)
20K12.43 mi3.11 mi5610-441435-64435-646522(Top 24%)660(Top 6%)660(Top 14%)
Half13.11 mi0.68 mi5651-41438-3438-36273(Top 24%)573(Top 5%)573(Top 12%)
25K15.53 mi2.42 mi5773-122465-27465-276434(Top 24%)677(Top 6%)677(Top 14%)
30K18.64 mi3.11 mi5929-156513-48513-486905(Top 26%)896(Top 8%)896(Top 18%)
20M20.00 mi1.36 mi5963-34534-21534-216924(Top 26%)992(Top 9%)992(Top 20%)
21M21.00 mi1.00 mi5953+10544-10544-106849(Top 26%)1068(Top 9%)1068(Top 22%)
35K21.75 mi0.75 mi5954-1554-10554-107058(Top 27%)1111(Top 10%)1111(Top 23%)
23M23.00 mi1.25 mi5994-40574-20574-207698(Top 29%)1446(Top 13%)1446(Top 30%)
24M24.00 mi1.00 mi6067-73602-28602-289309(Top 35%)2239(Top 20%)2239(Top 46%)
40K24.85 mi0.85 mi6162-95635-33635-3310515(Top 39%)2877(Top 25%)2877(Top 59%)
25.2M25.20 mi0.35 mi6193-31646-11646-119275(Top 35%)2334(Top 20%)2334(Top 48%)
Finish26.22 mi1.02 mi6260-67675-29675-299214(Top 35%)2323(Top 20%)2323(Top 48%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6040

Females

545

F18-39

545

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5180

Females

384

F18-39

384

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6040

Females

545

F18-39

545

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6522

Females

660

F18-39

660

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6273

Females

573

F18-39

573

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6434

Females

677

F18-39

677

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

6905

Females

896

F18-39

896

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

6924

Females

992

F18-39

992

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

6849

Females

1068

F18-39

1068

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7058

Females

1111

F18-39

1111

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

7698

Females

1446

F18-39

1446

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

9309

Females

2239

F18-39

2239

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10515

Females

2877

F18-39

2877

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9275

Females

2334

F18-39

2334

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9214

Females

2323

F18-39

2323

Passing Analysis

Category:
Athletes Passed
559
Passed By
2546
Net Change
-1987
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4273
5K → 10K74534-460#4273#4733
10K → 15K21457-436#4733#5169
15K → 20K30471-441#5169#5610
20K → Half546-41#5610#5651
Half → 25K49171-122#5651#5773
25K → 30K75231-156#5773#5929
30K → 20M5084-34#5929#5963
20M → 21M6252+10#5963#5953
21M → 35K3536-1#5953#5954
35K → 23M5191-40#5954#5994
23M → 24M37110-73#5994#6067
24M → 40K24119-95#6067#6162
40K → 25.2M1344-31#6162#6193
25.2M → Finish33100-67#6193#6260
TOTALS5592546-1987
📊

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