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BOSTON MARATHON 2023

Marcela Fonseca

Bib: 19787•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:01
Rank: #18873
Start → 5K
27:01 | 8:42/mi
10K· 6.21 mi
54:14
Rank: #19295 (-422)
5K → 10K
27:13 | 8:46/mi
15K· 9.32 mi
1:21:35
Rank: #19353 (-58)
10K → 15K
27:21 | 8:48/mi
20K· 12.43 mi
1:49:04
Rank: #19211 (+142)
15K → 20K
27:29 | 8:51/mi
Half· 13.11 mi
1:55:00
Rank: #19191 (+20)
20K → Half
5:56 | 8:42/mi
25K· 15.53 mi
2:16:36
Rank: #19048 (+143)
Half → 25K
21:36 | 8:55/mi
30K· 18.64 mi
2:45:22
Rank: #18956 (+92)
25K → 30K
28:46 | 9:16/mi
20M
2:57:56
Rank: #18856 (+100)
30K → 20M
12:34 | 9:15/mi
21M
3:07:47
Rank: #18752 (+104)
20M → 21M
9:51 | 9:51/mi
35K· 21.75 mi
3:14:32
Rank: #18722 (+30)
21M → 35K
6:45 | 9:01/mi
23M
3:26:13
Rank: #18649 (+73)
35K → 23M
11:41 | 9:20/mi
24M
3:35:19
Rank: #18609 (+40)
23M → 24M
9:06 | 9:06/mi
40K· 24.85 mi
3:43:19
Rank: #18574 (+35)
24M → 40K
8:00 | 9:21/mi
25.2M
3:46:45
Rank: #18552 (+22)
40K → 25.2M
3:26 | 9:57/mi
Finish· 26.22 mi
3:56:18
Rank: #18621 (-69)
25.2M → Finish
9:33 | 9:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:00
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:01:18
Pace9:15 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:2527:018:4227:01
8:42
-
10K
6.21 mi11:49:3854:148:4427:13
8:46
+0:04
15K
9.32 mi12:16:591:21:358:4527:21
8:48
+0:02
20K
12.43 mi12:44:281:49:048:4727:29
8:51
+0:03
Half
13.11 mi12:50:241:55:008:465:56
8:42
-0:09
25K
15.53 mi13:12:002:16:368:4821:36
8:55
+0:13
30K
18.64 mi13:40:462:45:228:5228:46
9:16
+0:21
20M
20.00 mi13:53:202:57:568:5412:34
9:15
-0:01
21M
21.00 mi14:03:113:07:478:579:51
9:51
+0:36
35K
21.75 mi14:09:563:14:328:576:45
9:01
-0:50
23M
23.00 mi14:21:373:26:138:5811:41
9:20
+0:19
24M
24.00 mi14:30:433:35:198:589:06
9:06
-0:14
40K
24.85 mi14:38:433:43:198:598:00
9:21
+0:15
25.2M
25.20 mi14:42:093:46:459:003:26
9:57
+0:36
Finish
26.22 mi14:51:423:56:189:019:33
9:22
-0:35

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

8:42 /mi

Average Pace

9:01 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:43:01

94% of race

Time at Steady Pace

13:17

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:01 /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 mi11:22:2527:018:4227:01
8:42
#18873
10K
6.21 mi11:49:3854:148:4427:13
8:46
#19295
15K
9.32 mi12:16:591:21:358:4527:21
8:48
#19353
20K
12.43 mi12:44:281:49:048:4727:29
8:51
#19211
Half
13.11 mi12:50:241:55:008:465:56
8:42
#19191
25K
15.53 mi13:12:002:16:368:4821:36
8:55
#19048
30K
18.64 mi13:40:462:45:228:5228:46
9:16
#18956
20M
20.00 mi13:53:202:57:568:5412:34
9:15
#18856
21M
21.00 mi14:03:113:07:478:579:51
9:51
#18752
35K
21.75 mi14:09:563:14:328:576:45
9:01
#18722
23M
23.00 mi14:21:373:26:138:5811:41
9:20
#18649
24M
24.00 mi14:30:433:35:198:589:06
9:06
#18609
40K
24.85 mi14:38:433:43:198:598:00
9:21
#18574
25.2M
25.20 mi14:42:093:46:459:003:26
9:57
#18552
Finish
26.22 mi14:51:423:56:189:019:33
9:22
#18621
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi188737124712419539(Top 73%)7405(Top 65%)7405(Top 408%)
10K6.21 mi3.10 mi19295-4227332-2087332-20819737(Top 74%)7537(Top 66%)7537(Top 415%)
15K9.32 mi3.11 mi19353-587354-227354-2219539(Top 73%)7405(Top 65%)7405(Top 408%)
20K12.43 mi3.11 mi19211+1427244+1107244+11018929(Top 71%)7046(Top 62%)7046(Top 388%)
Half13.11 mi0.68 mi19191+207228+167228+1618969(Top 71%)7068(Top 62%)7068(Top 389%)
25K15.53 mi2.42 mi19048+1437144+847144+8418514(Top 70%)6857(Top 60%)6857(Top 377%)
30K18.64 mi3.11 mi18956+927114+307114+3018450(Top 69%)6891(Top 60%)6891(Top 379%)
20M20.00 mi1.36 mi18856+1007073+417073+4117811(Top 67%)6645(Top 58%)6645(Top 366%)
21M21.00 mi1.00 mi18752+1047022+517022+5117466(Top 66%)6468(Top 57%)6468(Top 356%)
35K21.75 mi0.75 mi18722+307012+107012+1018026(Top 68%)6857(Top 60%)6857(Top 377%)
23M23.00 mi1.25 mi18649+736983+296983+2917681(Top 66%)6679(Top 58%)6679(Top 368%)
24M24.00 mi1.00 mi18609+406969+146969+1417692(Top 66%)6743(Top 59%)6743(Top 371%)
40K24.85 mi0.85 mi18574+356964+56964+517801(Top 67%)6842(Top 60%)6842(Top 377%)
25.2M25.20 mi0.35 mi18552+226957+76957+717253(Top 65%)6579(Top 58%)6579(Top 362%)
Finish26.22 mi1.02 mi18621-697004-477004-4719665(Top 74%)7811(Top 68%)7811(Top 430%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

19539

Females

7405

F45-49

7405

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

19737

Females

7537

F45-49

7537

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

19539

Females

7405

F45-49

7405

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

18929

Females

7046

F45-49

7046

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

18969

Females

7068

F45-49

7068

Half→25K

13.1 - 15.5 mi

Top 70%
×4stories
+66ft-88ft

Overall

18514

Females

6857

F45-49

6857

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

18450

Females

6891

F45-49

6891

30K→20M

18.6 - 20.0 mi

Top 67%
×5stories
+64ft-50ft

Overall

17811

Females

6645

F45-49

6645

20M→21M

20.0 - 21.0 mi

Top 66%
×8stories
+106ft-24ft

Overall

17466

Females

6468

F45-49

6468

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

18026

Females

6857

F45-49

6857

35K→23M

21.8 - 23.0 mi

Top 66%
×5stories
+23ft-63ft

Overall

17681

Females

6679

F45-49

6679

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

17692

Females

6743

F45-49

6743

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17801

Females

6842

F45-49

6842

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17253

Females

6579

F45-49

6579

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

19665

Females

7811

F45-49

7811

Passing Analysis

Category:
Athletes Passed
1653
Passed By
1401
Net Change
+252
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18873
5K → 10K172594-422#18873#19295
10K → 15K165223-58#19295#19353
15K → 20K23189+142#19353#19211
20K → Half3919+20#19211#19191
Half → 25K18138+143#19191#19048
25K → 30K213121+92#19048#18956
30K → 20M13737+100#18956#18856
20M → 21M13329+104#18856#18752
21M → 35K5929+30#18752#18722
35K → 23M11643+73#18722#18649
23M → 24M7232+40#18649#18609
24M → 40K7035+35#18609#18574
40K → 25.2M3614+22#18574#18552
25.2M → Finish2998-69#18552#18621
TOTALS16531401+252
📊

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