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BOSTON MARATHON 2023

Paulina Aldrete Mejia

Bib: 18164•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 20%
Division (F18-39)
#0 / 4884
Top 34%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:43/mi
23:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:40/mi
47:46
↑ 79↓ 1380.4%
15K· 9.32 mi
7:48/mi
1:12:01
↑ 67↓ 78
20K· 12.43 mi
7:55/mi
1:36:38
↑ 106↓ 860.1%
Half· 13.11 mi
7:56/mi
1:42:03
↑ 19↓ 370.5%
25K· 15.53 mi
7:56/mi
2:01:17
↑ 66↓ 880.2%
30K· 18.64 mi
7:55/mi
2:25:52
↑ 181↓ 1480.2%
20M
7:54/mi
2:36:36
↑ 64↓ 500.2%
21M
8:01/mi
2:44:37
↑ 106↓ 241.6%
35K· 21.75 mi
7:20/mi
2:50:06
↑ 17↓ 861.7%
23M
7:42/mi
2:59:45
↑ 23↓ 630.6%
24M
7:26/mi
3:07:11
↓ 821.3%
40K· 24.85 mi
7:34/mi
3:13:39
↓ 200.3%
25.2M
8:07/mi
3:16:27
↑ 13↓ 160.2%
Finish· 26.22 mi
7:14/mi
3:23:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:42:03
Pace7:47 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:41:46
Pace7:46 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1123:587:4323:58
7:43
-
10K
6.21 mi11:38:5947:467:4123:48
7:40
-0:03
15K
9.32 mi12:03:141:12:017:4424:15
7:48
+0:08
20K
12.43 mi12:27:511:36:387:4724:37
7:55
+0:07
Half
13.11 mi12:33:161:42:037:475:25
7:56
+0:01
25K
15.53 mi12:52:302:01:177:4819:14
7:56
0:00
30K
18.64 mi13:17:052:25:527:4924:35
7:55
-0:01
20M
20.00 mi13:27:492:36:367:5010:44
7:54
-0:01
21M
21.00 mi13:35:502:44:377:508:01
8:01
+0:07
35K
21.75 mi13:41:192:50:067:495:29
7:20
-0:41
23M
23.00 mi13:50:582:59:457:499:39
7:42
+0:22
24M
24.00 mi13:58:243:07:117:487:26
7:26
-0:16
40K
24.85 mi14:04:523:13:397:476:28
7:34
+0:08
25.2M
25.20 mi14:07:403:16:277:482:48
8:07
+0:33
Finish
26.22 mi14:15:023:23:497:477:22
7:14
-0:53

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

7:14 /mi

Average Pace

7:47 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:00

95% of race

Time at Steady Pace

10:49

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:46 /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 mi11:15:1123:587:4323:58
7:43
#11584
10K
6.21 mi11:38:5947:467:4123:48
7:40
#11693
15K
9.32 mi12:03:141:12:017:4424:15
7:48
#12027
20K
12.43 mi12:27:511:36:387:4724:37
7:55
#12173
Half
13.11 mi12:33:161:42:037:475:25
7:56
#12273
25K
15.53 mi12:52:302:01:177:4819:14
7:56
#12245
30K
18.64 mi13:17:052:25:527:4924:35
7:55
#11816
20M
20.00 mi13:27:492:36:367:5010:44
7:54
#11625
21M
21.00 mi13:35:502:44:377:508:01
8:01
#11319
35K
21.75 mi13:41:192:50:067:495:29
7:20
#11157
23M
23.00 mi13:50:582:59:457:499:39
7:42
#10912
24M
24.00 mi13:58:243:07:117:487:26
7:26
#10733
40K
24.85 mi14:04:523:13:397:476:28
7:34
#10556
25.2M
25.20 mi14:07:403:16:277:482:48
8:07
#10500
Finish
26.22 mi14:15:023:23:497:477:22
7:14
#10302
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi115842630263012773(Top 48%)3329(Top 29%)3329(Top 68%)
10K6.21 mi3.10 mi11693-1092703-732703-7311892(Top 45%)2799(Top 25%)2799(Top 57%)
15K9.32 mi3.11 mi12027-3342908-2052908-20512773(Top 48%)3329(Top 29%)3329(Top 68%)
20K12.43 mi3.11 mi12173-1463019-1113019-11112815(Top 48%)3441(Top 30%)3441(Top 70%)
Half13.11 mi0.68 mi12273-1003079-603079-6013881(Top 52%)3990(Top 35%)3990(Top 82%)
25K15.53 mi2.42 mi12245+283079307912162(Top 46%)3164(Top 28%)3164(Top 65%)
30K18.64 mi3.11 mi11816+4292875+2042875+20410238(Top 38%)2273(Top 20%)2273(Top 47%)
20M20.00 mi1.36 mi11625+1912781+942781+949577(Top 36%)2053(Top 18%)2053(Top 42%)
21M21.00 mi1.00 mi11319+3062630+1512630+1517491(Top 28%)1322(Top 12%)1322(Top 27%)
35K21.75 mi0.75 mi11157+1622551+792551+797404(Top 28%)1279(Top 11%)1279(Top 26%)
23M23.00 mi1.25 mi10912+2452458+932458+937807(Top 29%)1505(Top 13%)1505(Top 31%)
24M24.00 mi1.00 mi10733+1792394+642394+647308(Top 27%)1417(Top 12%)1417(Top 29%)
40K24.85 mi0.85 mi10556+1772338+562338+567152(Top 27%)1439(Top 13%)1439(Top 29%)
25.2M25.20 mi0.35 mi10500+562318+202318+207313(Top 27%)1557(Top 14%)1557(Top 32%)
Finish26.22 mi1.02 mi10302+1982246+722246+726658(Top 25%)1309(Top 11%)1309(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

12773

Females

3329

F18-39

3329

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

11892

Females

2799

F18-39

2799

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

12773

Females

3329

F18-39

3329

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

12815

Females

3441

F18-39

3441

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13881

Females

3990

F18-39

3990

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

12162

Females

3164

F18-39

3164

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10238

Females

2273

F18-39

2273

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9577

Females

2053

F18-39

2053

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7491

Females

1322

F18-39

1322

21M→35K

21.0 - 21.8 mi

Top 28%
×7story building
+17ft-86ft

Overall

7404

Females

1279

F18-39

1279

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7807

Females

1505

F18-39

1505

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7308

Females

1417

F18-39

1417

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7152

Females

1439

F18-39

1439

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7313

Females

1557

F18-39

1557

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2story building
+22ft-21ft

Overall

6658

Females

1309

F18-39

1309

Passing Analysis

Category:
Athletes Passed
2614
Passed By
1332
Net Change
+1282
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11584
5K → 10K241350-109#11584#11693
10K → 15K92426-334#11693#12027
15K → 20K122268-146#12027#12173
20K → Half8108-100#12173#12273
Half → 25K12799+28#12273#12245
25K → 30K46031+429#12245#11816
30K → 20M20413+191#11816#11625
20M → 21M3082+306#11625#11319
21M → 35K1631+162#11319#11157
35K → 23M2538+245#11157#10912
23M → 24M1856+179#10912#10733
24M → 40K1836+177#10733#10556
40K → 25.2M604+56#10556#10500
25.2M → Finish20810+198#10500#10302
TOTALS26141332+1282
📊

Passing Visuals

Category:
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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