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BOSTON MARATHON 2023

Annie Sferrazza

Bib: 29639•F

MA

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
32:10
Rank: #24371
Start → 5K
32:10 | 10:21/mi
10K· 6.21 mi
1:06:13
Rank: #25016 (-645)
5K → 10K
34:03 | 10:58/mi
15K· 9.32 mi
1:37:40
Rank: #24599 (+417)
10K → 15K
31:27 | 10:07/mi
20K· 12.43 mi
2:09:56
Rank: #24341 (+258)
15K → 20K
32:16 | 10:23/mi
Half· 13.11 mi
2:16:36
Rank: #24252 (+89)
20K → Half
6:40 | 9:46/mi
25K· 15.53 mi
2:40:48
Rank: #23869 (+383)
Half → 25K
24:12 | 9:59/mi
30K· 18.64 mi
3:21:01
Rank: #24321 (-452)
25K → 30K
40:13 | 12:57/mi
20M
3:39:29
Rank: #24490 (-169)
30K → 20M
18:28 | 13:35/mi
21M
3:52:00
Rank: #24443 (+47)
20M → 21M
12:31 | 12:31/mi
35K· 21.75 mi
4:01:14
Rank: #24472 (-29)
21M → 35K
9:14 | 12:21/mi
23M
4:16:41
Rank: #24488 (-16)
35K → 23M
15:27 | 12:20/mi
24M
4:28:22
Rank: #24471 (+17)
23M → 24M
11:41 | 11:41/mi
40K· 24.85 mi
4:38:22
Rank: #24454 (+17)
24M → 40K
10:00 | 11:42/mi
25.2M
4:42:39
Rank: #24437 (+17)
40K → 25.2M
4:17 | 12:25/mi
Finish· 26.22 mi
4:53:18
Rank: #24399 (+38)
25.2M → Finish
10:39 | 10:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:36
Pace10:25 /mi
2nd Half
Distance13.11 mi
Time2:36:42
Pace11:57 /mi
📊Positive Split: 14.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:0632:1010:2132:10
10:21
-
10K
6.21 mi12:28:091:06:1310:3934:03
10:58
+0:37
15K
9.32 mi12:59:361:37:4010:2931:27
10:07
-0:51
20K
12.43 mi13:31:522:09:5610:2732:16
10:23
+0:16
Half
13.11 mi13:38:322:16:3610:256:40
9:46
-0:37
25K
15.53 mi14:02:442:40:4810:2124:12
9:59
+0:13
30K
18.64 mi14:42:573:21:0110:4740:13
12:57
+2:58
20M
20.00 mi15:01:253:39:2910:5818:28
13:35
+0:38
21M
21.00 mi15:13:563:52:0011:0312:31
12:31
-1:04
35K
21.75 mi15:23:104:01:1411:069:14
12:21
-0:10
23M
23.00 mi15:38:374:16:4111:1015:27
12:20
-0:01
24M
24.00 mi15:50:184:28:2211:1111:41
11:41
-0:39
40K
24.85 mi16:00:184:38:2211:1210:00
11:42
+0:01
25.2M
25.20 mi16:04:354:42:3911:134:17
12:25
+0:43
Finish
26.22 mi16:15:144:53:1811:1210:39
10:27
-1:58

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

9:46 /mi

Average Pace

11:12 /mi

Slowest Pace

13:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:27

58% of race

Time at Steady Pace

21:41

7% of race

Time at Slower Pace

1:40:10

34% of race

Average Pace: 11:11 /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 mi11:54:0632:1010:2132:10
10:21
#24371
10K
6.21 mi12:28:091:06:1310:3934:03
10:58
#25016
15K
9.32 mi12:59:361:37:4010:2931:27
10:07
#24599
20K
12.43 mi13:31:522:09:5610:2732:16
10:23
#24341
Half
13.11 mi13:38:322:16:3610:256:40
9:46
#24252
25K
15.53 mi14:02:442:40:4810:2124:12
9:59
#23869
30K
18.64 mi14:42:573:21:0110:4740:13
12:57
#24321
20M
20.00 mi15:01:253:39:2910:5818:28
13:35
#24490
21M
21.00 mi15:13:563:52:0011:0312:31
12:31
#24443
35K
21.75 mi15:23:104:01:1411:069:14
12:21
#24472
23M
23.00 mi15:38:374:16:4111:1015:27
12:20
#24488
24M
24.00 mi15:50:184:28:2211:1111:41
11:41
#24471
40K
24.85 mi16:00:184:38:2211:1210:00
11:42
#24454
25.2M
25.20 mi16:04:354:42:3911:134:17
12:25
#24437
Finish
26.22 mi16:15:144:53:1811:1210:39
10:27
#24399
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24371100791007923745(Top 89%)9748(Top 85%)9748(Top 200%)
10K6.21 mi3.10 mi25016-64510443-36410443-36425420(Top 95%)10679(Top 93%)10679(Top 219%)
15K9.32 mi3.11 mi24599+41710222+22110222+22123745(Top 89%)9748(Top 85%)9748(Top 200%)
20K12.43 mi3.11 mi24341+25810085+13710085+13723630(Top 89%)9702(Top 85%)9702(Top 199%)
Half13.11 mi0.68 mi24252+8910033+5210033+5222828(Top 86%)9265(Top 81%)9265(Top 190%)
25K15.53 mi2.42 mi23869+3839833+2009833+20022185(Top 83%)8940(Top 78%)8940(Top 183%)
30K18.64 mi3.11 mi24321-45210108-27510108-27525366(Top 95%)10771(Top 94%)10771(Top 221%)
20M20.00 mi1.36 mi24490-16910206-9810206-9825595(Top 96%)10904(Top 95%)10904(Top 223%)
21M21.00 mi1.00 mi24443+4710188+1810188+1823477(Top 88%)9799(Top 86%)9799(Top 201%)
35K21.75 mi0.75 mi24472-2910206-1810206-1825024(Top 94%)10666(Top 93%)10666(Top 218%)
23M23.00 mi1.25 mi24488-1610227-2110227-2124421(Top 92%)10348(Top 91%)10348(Top 212%)
24M24.00 mi1.00 mi24471+1710228-110228-124117(Top 91%)10224(Top 90%)10224(Top 209%)
40K24.85 mi0.85 mi24454+1710222+610222+623513(Top 88%)9949(Top 87%)9949(Top 204%)
25.2M25.20 mi0.35 mi24437+1710218+410218+423192(Top 87%)9769(Top 86%)9769(Top 200%)
Finish26.22 mi1.02 mi24399+3810201+1710201+1722922(Top 86%)9619(Top 84%)9619(Top 197%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

23745

Females

9748

F18-39

9748

5K→10K

3.1 - 6.2 mi

Top 95%
×5stories
+79ft-138ft

Overall

25420

Females

10679

F18-39

10679

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

23745

Females

9748

F18-39

9748

15K→20K

9.3 - 12.4 mi

Top 89%
×5stories
+106ft-86ft

Overall

23630

Females

9702

F18-39

9702

20K→Half

12.4 - 13.1 mi

Top 86%
×2stories
+19ft-37ft

Overall

22828

Females

9265

F18-39

9265

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

22185

Females

8940

F18-39

8940

25K→30K

15.5 - 18.6 mi

Top 95%
×9stories
+181ft-148ft

Overall

25366

Females

10771

F18-39

10771

30K→20M

18.6 - 20.0 mi

Top 96%
×5stories
+64ft-50ft

Overall

25595

Females

10904

F18-39

10904

20M→21M

20.0 - 21.0 mi

Top 88%
×8stories
+106ft-24ft

Overall

23477

Females

9799

F18-39

9799

21M→35K

21.0 - 21.8 mi

Top 94%
×7stories
+17ft-86ft

Overall

25024

Females

10666

F18-39

10666

35K→23M

21.8 - 23.0 mi

Top 92%
×5stories
+23ft-63ft

Overall

24421

Females

10348

F18-39

10348

23M→24M

23.0 - 24.0 mi

Top 91%
×6stories
+12ft-82ft

Overall

24117

Females

10224

F18-39

10224

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23513

Females

9949

F18-39

9949

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

23192

Females

9769

F18-39

9769

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

22922

Females

9619

F18-39

9619

Passing Analysis

Category:
Athletes Passed
1481
Passed By
1509
Net Change
-28
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24371
5K → 10K25670-645#24371#25016
10K → 15K4247+417#25016#24599
15K → 20K27214+258#24599#24341
20K → Half923+89#24341#24252
Half → 25K3841+383#24252#23869
25K → 30K20472-452#23869#24321
30K → 20M11180-169#24321#24490
20M → 21M6619+47#24490#24443
21M → 35K1645-29#24443#24472
35K → 23M3450-16#24472#24488
23M → 24M4326+17#24488#24471
24M → 40K3013+17#24471#24454
40K → 25.2M203+17#24454#24437
25.2M → Finish446+38#24437#24399
TOTALS14811509-28
📊

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