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BOSTON MARATHON 2023

Alessandra Iacaboni

Bib: 25550•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
34:06
Rank: #25645
Start → 5K
34:06 | 10:59/mi
10K· 6.21 mi
1:05:50
Rank: #24898 (+747)
5K → 10K
31:44 | 10:13/mi
15K· 9.32 mi
1:37:11
Rank: #24497 (+401)
10K → 15K
31:21 | 10:05/mi
20K· 12.43 mi
2:07:15
Rank: #23894 (+603)
15K → 20K
30:04 | 9:41/mi
Half· 13.11 mi
2:14:43
Rank: #23953 (-59)
20K → Half
7:28 | 10:57/mi
25K· 15.53 mi
2:40:51
Rank: #23875 (+78)
Half → 25K
26:08 | 10:47/mi
30K· 18.64 mi
3:14:15
Rank: #23651 (+224)
25K → 30K
33:24 | 10:45/mi
20M
3:28:04
Rank: #23486 (+165)
30K → 20M
13:49 | 10:10/mi
21M
3:38:59
Rank: #23359 (+127)
20M → 21M
10:55 | 10:55/mi
35K· 21.75 mi
3:46:12
Rank: #23249 (+110)
21M → 35K
7:13 | 9:39/mi
23M
3:59:06
Rank: #23134 (+115)
35K → 23M
12:54 | 10:18/mi
24M
4:08:49
Rank: #22998 (+136)
23M → 24M
9:43 | 9:43/mi
40K· 24.85 mi
4:17:35
Rank: #22919 (+79)
24M → 40K
8:46 | 10:15/mi
25.2M
4:21:42
Rank: #22911 (+8)
40K → 25.2M
4:07 | 11:56/mi
Finish· 26.22 mi
4:31:09
Rank: #22828 (+83)
25.2M → Finish
9:27 | 9:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:43
Pace10:17 /mi
2nd Half
Distance13.11 mi
Time2:16:26
Pace10:24 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:2034:0610:5934:06
10:59
-
10K
6.21 mi12:26:041:05:5010:3631:44
10:13
-0:46
15K
9.32 mi12:57:251:37:1110:2631:21
10:05
-0:08
20K
12.43 mi13:27:292:07:1510:1430:04
9:41
-0:24
Half
13.11 mi13:34:572:14:4310:177:28
10:57
+1:16
25K
15.53 mi14:01:052:40:5110:2126:08
10:47
-0:10
30K
18.64 mi14:34:293:14:1510:2533:24
10:45
-0:02
20M
20.00 mi14:48:183:28:0410:2413:49
10:10
-0:35
21M
21.00 mi14:59:133:38:5910:2610:55
10:55
+0:45
35K
21.75 mi15:06:263:46:1210:247:13
9:39
-1:16
23M
23.00 mi15:19:203:59:0610:2412:54
10:18
+0:39
24M
24.00 mi15:29:034:08:4910:229:43
9:43
-0:35
40K
24.85 mi15:37:494:17:3510:228:46
10:15
+0:32
25.2M
25.20 mi15:41:564:21:4210:234:07
11:56
+1:41
Finish
26.22 mi15:51:234:31:0910:219:27
9:16
-2:40

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

9:16 /mi

Average Pace

10:21 /mi

Slowest Pace

11:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

56:27

21% of race

Time at Steady Pace

1:38:34

36% of race

Time at Slower Pace

1:56:08

43% of race

Average Pace: 10:20 /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 mi11:54:2034:0610:5934:06
10:59
#25645
10K
6.21 mi12:26:041:05:5010:3631:44
10:13
#24898
15K
9.32 mi12:57:251:37:1110:2631:21
10:05
#24497
20K
12.43 mi13:27:292:07:1510:1430:04
9:41
#23894
Half
13.11 mi13:34:572:14:4310:177:28
10:57
#23953
25K
15.53 mi14:01:052:40:5110:2126:08
10:47
#23875
30K
18.64 mi14:34:293:14:1510:2533:24
10:45
#23651
20M
20.00 mi14:48:183:28:0410:2413:49
10:10
#23486
21M
21.00 mi14:59:133:38:5910:2610:55
10:55
#23359
35K
21.75 mi15:06:263:46:1210:247:13
9:39
#23249
23M
23.00 mi15:19:203:59:0610:2412:54
10:18
#23134
24M
24.00 mi15:29:034:08:4910:229:43
9:43
#22998
40K
24.85 mi15:37:494:17:3510:228:46
10:15
#22919
25.2M
25.20 mi15:41:564:21:4210:234:07
11:56
#22911
Finish
26.22 mi15:51:234:31:0910:219:27
9:16
#22828
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25645108171081723681(Top 89%)9710(Top 85%)9710(Top 199%)
10K6.21 mi3.10 mi24898+74710379+43810379+43824157(Top 91%)9973(Top 87%)9973(Top 204%)
15K9.32 mi3.11 mi24497+40110160+21910160+21923681(Top 89%)9710(Top 85%)9710(Top 199%)
20K12.43 mi3.11 mi23894+6039827+3339827+33322092(Top 83%)8858(Top 78%)8858(Top 181%)
Half13.11 mi0.68 mi23953-599865-389865-3824867(Top 93%)10419(Top 91%)10419(Top 213%)
25K15.53 mi2.42 mi23875+789835+309835+3023638(Top 89%)9751(Top 85%)9751(Top 200%)
30K18.64 mi3.11 mi23651+2249725+1109725+11022702(Top 85%)9300(Top 81%)9300(Top 190%)
20M20.00 mi1.36 mi23486+1659652+739652+7320941(Top 79%)8384(Top 73%)8384(Top 172%)
21M21.00 mi1.00 mi23359+1279590+629590+6220656(Top 78%)8274(Top 72%)8274(Top 169%)
35K21.75 mi0.75 mi23249+1109540+509540+5020344(Top 76%)8144(Top 71%)8144(Top 167%)
23M23.00 mi1.25 mi23134+1159491+499491+4920849(Top 78%)8438(Top 74%)8438(Top 173%)
24M24.00 mi1.00 mi22998+1369435+569435+5619978(Top 75%)7968(Top 70%)7968(Top 163%)
40K24.85 mi0.85 mi22919+799401+349401+3420645(Top 78%)8417(Top 74%)8417(Top 172%)
25.2M25.20 mi0.35 mi22911+89398+39398+322406(Top 84%)9354(Top 82%)9354(Top 192%)
Finish26.22 mi1.02 mi22828+839359+399359+3919289(Top 72%)7614(Top 67%)7614(Top 156%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

23681

Females

9710

F18-39

9710

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

24157

Females

9973

F18-39

9973

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

23681

Females

9710

F18-39

9710

15K→20K

9.3 - 12.4 mi

Top 83%
×5stories
+106ft-86ft

Overall

22092

Females

8858

F18-39

8858

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

24867

Females

10419

F18-39

10419

Half→25K

13.1 - 15.5 mi

Top 89%
×4stories
+66ft-88ft

Overall

23638

Females

9751

F18-39

9751

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

22702

Females

9300

F18-39

9300

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

20941

Females

8384

F18-39

8384

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20656

Females

8274

F18-39

8274

21M→35K

21.0 - 21.8 mi

Top 76%
×7stories
+17ft-86ft

Overall

20344

Females

8144

F18-39

8144

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

20849

Females

8438

F18-39

8438

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

19978

Females

7968

F18-39

7968

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20645

Females

8417

F18-39

8417

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22406

Females

9354

F18-39

9354

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

19289

Females

7614

F18-39

7614

Passing Analysis

Category:
Athletes Passed
2994
Passed By
177
Net Change
+2817
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25645
5K → 10K7525+747#25645#24898
10K → 15K4098+401#24898#24497
15K → 20K6052+603#24497#23894
20K → Half1271-59#23894#23953
Half → 25K12345+78#23953#23875
25K → 30K24319+224#23875#23651
30K → 20M1661+165#23651#23486
20M → 21M1281+127#23486#23359
21M → 35K1111+110#23359#23249
35K → 23M1172+115#23249#23134
23M → 24M1382+136#23134#22998
24M → 40K867+79#22998#22919
40K → 25.2M1911+8#22919#22911
25.2M → Finish852+83#22911#22828
TOTALS2994177+2817
📊

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