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BOSTON MARATHON 2023

Mao Her-Flores

CA

Bib: 20706 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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
9:13/mi
28:38
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:55/mi
56:20
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:47/mi
1:26:45
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:41/mi
1:56:50
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
10:24/mi
2:03:56
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:28/mi
2:26:52
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:49/mi
2:57:21
↑ 181↓ 1480.2%
138 ft elev
20M
8:51/mi
3:09:22
↑ 64↓ 500.2%
148 ft elev
21M
9:24/mi
3:18:46
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:41/mi
3:25:16
↑ 17↓ 861.7%
156 ft elev
23M
9:53/mi
3:37:38
↑ 23↓ 630.6%
116 ft elev
24M
8:52/mi
3:46:30
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:54/mi
3:54:58
↓ 200.3%
20 ft elev
25.2M
9:46/mi
3:58:20
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:07/mi
4:06:36
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
2:03:569:27 /mi+1.0%
2nd Half
2:02:409:21 /mi✓ faster
Negative split — 1.0% faster in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:5328:389:1328:38
9:13
-
10K
6.21 mi11:53:3556:209:0427:42
8:55
-0:18
15K
9.32 mi12:24:001:26:459:1830:25
9:47
+0:52
20K
12.43 mi12:54:051:56:509:2430:05
9:41
-0:06
Half
13.11 mi13:01:112:03:569:277:06
10:24
+0:43
25K
15.53 mi13:24:072:26:529:2722:56
9:28
-0:56
30K
18.64 mi13:54:362:57:219:3130:29
9:49
+0:21
20M
20.00 mi14:06:373:09:229:2812:01
8:51
-0:58
21M
21.00 mi14:16:013:18:469:289:24
9:24
+0:33
35K
21.75 mi14:22:313:25:169:266:30
8:41
-0:43
23M
23.00 mi14:34:533:37:389:2812:22
9:53
+1:12
24M
24.00 mi14:43:453:46:309:268:52
8:52
-1:01
40K
24.85 mi14:52:133:54:589:278:28
9:54
+1:02
25.2M
25.20 mi14:55:353:58:209:273:22
9:46
-0:08
Finish
26.22 mi15:03:514:06:369:258:16
8:07
-1:39

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

8:07 /mi

Average Pace

9:25 /mi

Slowest Pace

10:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

1:03:21

26% of race

Time at Steady Pace

1:31:03

37% of race

Time at Slower Pace

1:32:12

37% of race

Average Pace: 9:24 /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 mi11:25:5328:389:1328:38
9:13
#21264
10K
6.21 mi11:53:3556:209:0427:42
8:55
#20924
15K
9.32 mi12:24:001:26:459:1830:25
9:47
#21720
20K
12.43 mi12:54:051:56:509:2430:05
9:41
#21809
Half
13.11 mi13:01:112:03:569:277:06
10:24
#21952
25K
15.53 mi13:24:072:26:529:2722:56
9:28
#21742
30K
18.64 mi13:54:362:57:219:3130:29
9:49
#21530
20M
20.00 mi14:06:373:09:229:2812:01
8:51
#21182
21M
21.00 mi14:16:013:18:469:289:24
9:24
#20905
35K
21.75 mi14:22:313:25:169:266:30
8:41
#20759
23M
23.00 mi14:34:533:37:389:2812:22
9:53
#20674
24M
24.00 mi14:43:453:46:309:268:52
8:52
#20509
40K
24.85 mi14:52:133:54:589:278:28
9:54
#20465
25.2M
25.20 mi14:55:353:58:209:273:22
9:46
#20409
Finish
26.22 mi15:03:514:06:369:258:16
8:07
#20227
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi21264850785072302293569356
10K6.21 mi3.10 mi20924+3408281+2268281+2262050079797979
15K9.32 mi3.11 mi21720-7968686-4058686-4052302293569356
20K12.43 mi3.11 mi21809-898716-308716-302210588608860
Half13.11 mi0.68 mi21952-1438802-868802-862403399249924
25K15.53 mi2.42 mi21742+2108677+1258677+1252070781088108
30K18.64 mi3.11 mi21530+2128574+1038574+1032048780498049
20M20.00 mi1.36 mi21182+3488406+1688406+1681570854075407
21M21.00 mi1.00 mi20905+2778256+1508256+1501551553705370
35K21.75 mi0.75 mi20759+1468186+708186+701641059595959
23M23.00 mi1.25 mi20674+858152+348152+341964977647764
24M24.00 mi1.00 mi20509+1658066+868066+861663961696169
40K24.85 mi0.85 mi20465+448046+208046+201971479007900
25.2M25.20 mi0.35 mi20409+568024+228024+221646461586158
Finish26.22 mi1.02 mi20227+1827930+947930+941291541864186

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21story building
+97ft-345ft

Overall

23022

Females

9356

F45-49

9356

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

20500

Females

7979

F45-49

7979

10K→15K

6.2 - 9.3 mi

Top 86%
×3story building
+67ft-78ft

Overall

23022

Females

9356

F45-49

9356

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

22105

Females

8860

F45-49

8860

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

24033

Females

9924

F45-49

9924

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

20707

Females

8108

F45-49

8108

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

20487

Females

8049

F45-49

8049

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

15708

Females

5407

F45-49

5407

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

15515

Females

5370

F45-49

5370

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

16410

Females

5959

F45-49

5959

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19649

Females

7764

F45-49

7764

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16639

Females

6169

F45-49

6169

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19714

Females

7900

F45-49

7900

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16464

Females

6158

F45-49

6158

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

12915

Females

4186

F45-49

4186

Passing Analysis

Category:
Athletes Passed
2428
Passed By
1391
Net Change
+1037
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21264
5K → 10K469129+340#21264#20924
10K → 15K19815-796#20924#21720
15K → 20K99188-89#21720#21809
20K → Half7150-143#21809#21952
Half → 25K23020+210#21952#21742
25K → 30K24735+212#21742#21530
30K → 20M3480+348#21530#21182
20M → 21M2781+277#21182#20905
21M → 35K1460+146#20905#20759
35K → 23M11126+85#20759#20674
23M → 24M1672+165#20674#20509
24M → 40K6622+44#20509#20465
40K → 25.2M593+56#20465#20409
25.2M → Finish1820+182#20409#20227
TOTALS24281391+1037

Passing Charts

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