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BOSTON MARATHON 2023

Heidi Hernandez

Bib: 21981•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

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
9:26/mi
29:20
↑ 97↓ 3451.5%
10K· 6.21 mi
9:31/mi
58:53
↑ 79↓ 1380.4%
15K· 9.32 mi
9:30/mi
1:28:23
↑ 67↓ 78
20K· 12.43 mi
9:44/mi
1:58:36
↑ 106↓ 860.1%
Half· 13.11 mi
9:43/mi
2:05:14
↑ 19↓ 370.5%
25K· 15.53 mi
9:38/mi
2:28:36
↑ 66↓ 880.2%
30K· 18.64 mi
10:30/mi
3:01:13
↑ 181↓ 1480.2%
20M
10:30/mi
3:15:29
↑ 64↓ 500.2%
21M
11:17/mi
3:26:46
↑ 106↓ 241.6%
35K· 21.75 mi
10:10/mi
3:34:22
↑ 17↓ 861.7%
23M
10:18/mi
3:47:16
↑ 23↓ 630.6%
24M
10:09/mi
3:57:25
↓ 821.3%
40K· 24.85 mi
9:45/mi
4:05:45
↓ 200.3%
25.2M
12:02/mi
4:09:54
↑ 13↓ 160.2%
Finish· 26.22 mi
9:57/mi
4:20:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:14
Pace9:33 /mi
2nd Half
Distance13.11 mi
Time2:14:48
Pace10:17 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:2829:209:2629:20
9:26
-
10K
6.21 mi11:56:0158:539:2929:33
9:31
+0:05
15K
9.32 mi12:25:311:28:239:2929:30
9:30
-0:01
20K
12.43 mi12:55:441:58:369:3330:13
9:44
+0:14
Half
13.11 mi13:02:222:05:149:336:38
9:43
-0:01
25K
15.53 mi13:25:442:28:369:3423:22
9:38
-0:05
30K
18.64 mi13:58:213:01:139:4332:37
10:30
+0:52
20M
20.00 mi14:12:373:15:299:4614:16
10:30
0:00
21M
21.00 mi14:23:543:26:469:5111:17
11:17
+0:47
35K
21.75 mi14:31:303:34:229:517:36
10:10
-1:07
23M
23.00 mi14:44:243:47:169:5312:54
10:18
+0:08
24M
24.00 mi14:54:333:57:259:5410:09
10:09
-0:09
40K
24.85 mi15:02:534:05:459:538:20
9:45
-0:24
25.2M
25.20 mi15:07:024:09:549:554:09
12:02
+2:17
Finish
26.22 mi15:17:104:20:029:5510:08
9:57
-2:05

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

9:26 /mi

Average Pace

9:55 /mi

Slowest Pace

12:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:23

34% of race

Time at Steady Pace

1:36:26

37% of race

Time at Slower Pace

1:15:13

29% of race

Average Pace: 9:55 /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 mi11:26:2829:209:2629:20
9:26
#21921
10K
6.21 mi11:56:0158:539:2929:33
9:31
#22273
15K
9.32 mi12:25:311:28:239:2929:30
9:30
#22254
20K
12.43 mi12:55:441:58:369:3330:13
9:44
#22239
Half
13.11 mi13:02:222:05:149:336:38
9:43
#22257
25K
15.53 mi13:25:442:28:369:3423:22
9:38
#22077
30K
18.64 mi13:58:213:01:139:4332:37
10:30
#22128
20M
20.00 mi14:12:373:15:299:4614:16
10:30
#22091
21M
21.00 mi14:23:543:26:469:5111:17
11:17
#22055
35K
21.75 mi14:31:303:34:229:517:36
10:10
#22043
23M
23.00 mi14:44:243:47:169:5312:54
10:18
#21969
24M
24.00 mi14:54:333:57:259:5410:09
10:09
#21930
40K
24.85 mi15:02:534:05:459:538:20
9:45
#21840
25.2M
25.20 mi15:07:024:09:549:554:09
12:02
#21850
Finish
26.22 mi15:17:104:20:029:5510:08
9:57
#21844
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi219218843884322249(Top 84%)8931(Top 78%)8931(Top 492%)
10K6.21 mi3.10 mi22273-3528987-1448987-14422556(Top 85%)9117(Top 80%)9117(Top 502%)
15K9.32 mi3.11 mi22254+198965+228965+2222249(Top 84%)8931(Top 78%)8931(Top 492%)
20K12.43 mi3.11 mi22239+158955+108955+1022235(Top 84%)8926(Top 78%)8926(Top 491%)
Half13.11 mi0.68 mi22257-188962-78962-722716(Top 85%)9192(Top 80%)9192(Top 506%)
25K15.53 mi2.42 mi22077+1808868+948868+9421265(Top 80%)8421(Top 74%)8421(Top 463%)
30K18.64 mi3.11 mi22128-518910-428910-4222210(Top 83%)9019(Top 79%)9019(Top 496%)
20M20.00 mi1.36 mi22091+378898+128898+1221733(Top 82%)8833(Top 77%)8833(Top 486%)
21M21.00 mi1.00 mi22055+368893+58893+521455(Top 81%)8713(Top 76%)8713(Top 480%)
35K21.75 mi0.75 mi22043+128885+88885+821691(Top 81%)8877(Top 78%)8877(Top 489%)
23M23.00 mi1.25 mi21969+748848+378848+3720845(Top 78%)8434(Top 74%)8434(Top 464%)
24M24.00 mi1.00 mi21930+398838+108838+1021207(Top 80%)8674(Top 76%)8674(Top 477%)
40K24.85 mi0.85 mi21840+908809+298809+2919225(Top 72%)7624(Top 67%)7624(Top 420%)
25.2M25.20 mi0.35 mi21850-108817-88817-822581(Top 85%)9441(Top 83%)9441(Top 520%)
Finish26.22 mi1.02 mi21844+68825-88825-821620(Top 81%)8920(Top 78%)8920(Top 491%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

22249

Females

8931

F45-49

8931

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

22556

Females

9117

F45-49

9117

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

22249

Females

8931

F45-49

8931

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

22235

Females

8926

F45-49

8926

20K→Half

12.4 - 13.1 mi

Top 85%
×2story building
+19ft-37ft

Overall

22716

Females

9192

F45-49

9192

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

21265

Females

8421

F45-49

8421

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

22210

Females

9019

F45-49

9019

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

21733

Females

8833

F45-49

8833

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

21455

Females

8713

F45-49

8713

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

21691

Females

8877

F45-49

8877

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

20845

Females

8434

F45-49

8434

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

21207

Females

8674

F45-49

8674

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19225

Females

7624

F45-49

7624

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22581

Females

9441

F45-49

9441

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

21620

Females

8920

F45-49

8920

Passing Analysis

Category:
Athletes Passed
1251
Passed By
1174
Net Change
+77
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21921
5K → 10K116468-352#21921#22273
10K → 15K168149+19#22273#22254
15K → 20K141126+15#22254#22239
20K → Half1331-18#22239#22257
Half → 25K20727+180#22257#22077
25K → 30K114165-51#22077#22128
30K → 20M8851+37#22128#22091
20M → 21M7539+36#22091#22055
21M → 35K3220+12#22055#22043
35K → 23M9319+74#22043#21969
23M → 24M5516+39#21969#21930
24M → 40K977+90#21930#21840
40K → 25.2M1323-10#21840#21850
25.2M → Finish3933+6#21850#21844
TOTALS12511174+77
📊

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