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BOSTON MARATHON 2023

Miranda Martinez

Bib: 15441•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 33%
Gender (Female)
#0 / 11423
Top 14%
Division (F18-39)
#0 / 4884
Top 25%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:10
Rank: #12161
Start → 5K
7:47/mi
24:10 split
10K· 6.21 mi
48:03
Rank: #12123 (+38)
5K → 10K
7:41/mi
23:53 split
15K· 9.32 mi
1:11:54
Rank: #11902 (+221)
10K → 15K
7:41/mi
23:51 split
20K· 12.43 mi
1:35:43
Rank: #11550 (+352)
15K → 20K
7:40/mi
23:49 split
Half· 13.11 mi
1:40:54
Rank: #11507 (+43)
20K → Half
7:36/mi
5:11 split
25K· 15.53 mi
1:59:36
Rank: #11292 (+215)
Half → 25K
7:43/mi
18:42 split
30K· 18.64 mi
2:23:43
Rank: #10852 (+440)
25K → 30K
7:46/mi
24:07 split
20M
2:34:07
Rank: #10603 (+249)
30K → 20M
7:39/mi
10:24 split
21M
2:41:53
Rank: #10293 (+310)
20M → 21M
7:46/mi
7:46 split
35K· 21.75 mi
2:47:00
Rank: #10013 (+280)
21M → 35K
6:50/mi
5:07 split
23M
2:56:03
Rank: #9641 (+372)
35K → 23M
7:14/mi
9:03 split
24M
3:03:02
Rank: #9353 (+288)
23M → 24M
6:59/mi
6:59 split
40K· 24.85 mi
3:09:04
Rank: #9112 (+241)
24M → 40K
7:03/mi
6:02 split
25.2M
3:11:40
Rank: #9025 (+87)
40K → 25.2M
7:32/mi
2:36 split
Finish· 26.22 mi
3:18:34
Rank: #8761 (+264)
25.2M → Finish
6:46/mi
6:54 split

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:40:54
Pace7:42 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:37:40
Pace7:27 /mi
📊Negative Split: 3.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:0024:107:4724:10
7:47
-
10K
6.21 mi11:17:5348:037:4423:53
7:41
-0:06
15K
9.32 mi11:41:441:11:547:4323:51
7:41
0:00
20K
12.43 mi12:05:331:35:437:4223:49
7:40
-0:01
Half
13.11 mi12:10:441:40:547:425:11
7:36
-0:04
25K
15.53 mi12:29:261:59:367:4218:42
7:43
+0:07
30K
18.64 mi12:53:332:23:437:4324:07
7:46
+0:03
20M
20.00 mi13:03:572:34:077:4210:24
7:39
-0:07
21M
21.00 mi13:11:432:41:537:437:46
7:46
+0:07
35K
21.75 mi13:16:502:47:007:415:07
6:50
-0:56
23M
23.00 mi13:25:532:56:037:399:03
7:14
+0:24
24M
24.00 mi13:32:523:03:027:386:59
6:59
-0:15
40K
24.85 mi13:38:543:09:047:366:02
7:03
+0:04
25.2M
25.20 mi13:41:303:11:407:362:36
7:32
+0:29
Finish
26.22 mi13:48:243:18:347:356:54
6:46
-0:46

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

6:46 /mi

Average Pace

7:35 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

34:05

17% of race

Time at Steady Pace

2:44:29

83% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:34 /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 mi10:54:0024:107:4724:10
7:47
#12161
10K
6.21 mi11:17:5348:037:4423:53
7:41
#12123
15K
9.32 mi11:41:441:11:547:4323:51
7:41
#11902
20K
12.43 mi12:05:331:35:437:4223:49
7:40
#11550
Half
13.11 mi12:10:441:40:547:425:11
7:36
#11507
25K
15.53 mi12:29:261:59:367:4218:42
7:43
#11292
30K
18.64 mi12:53:332:23:437:4324:07
7:46
#10852
20M
20.00 mi13:03:572:34:077:4210:24
7:39
#10603
21M
21.00 mi13:11:432:41:537:437:46
7:46
#10293
35K
21.75 mi13:16:502:47:007:415:07
6:50
#10013
23M
23.00 mi13:25:532:56:037:399:03
7:14
#9641
24M
24.00 mi13:32:523:03:027:386:59
6:59
#9353
40K
24.85 mi13:38:543:09:047:366:02
7:03
#9112
25.2M
25.20 mi13:41:303:11:407:362:36
7:32
#9025
Finish
26.22 mi13:48:243:18:347:356:54
6:46
#8761
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi121612951295111645(Top 44%)2696(Top 24%)2696(Top 55%)
10K6.21 mi3.10 mi12123+382927+242927+2412118(Top 46%)2931(Top 26%)2931(Top 60%)
15K9.32 mi3.11 mi11902+2212834+932834+9311645(Top 44%)2696(Top 24%)2696(Top 55%)
20K12.43 mi3.11 mi11550+3522654+1802654+18010639(Top 40%)2219(Top 19%)2219(Top 45%)
Half13.11 mi0.68 mi11507+432629+252629+2511004(Top 41%)2346(Top 21%)2346(Top 48%)
25K15.53 mi2.42 mi11292+2152528+1012528+10110395(Top 39%)2172(Top 19%)2172(Top 44%)
30K18.64 mi3.11 mi10852+4402325+2032325+2039084(Top 34%)1734(Top 15%)1734(Top 36%)
20M20.00 mi1.36 mi10603+2492225+1002225+1007865(Top 30%)1353(Top 12%)1353(Top 28%)
21M21.00 mi1.00 mi10293+3102094+1312094+1316041(Top 23%)825(Top 7%)825(Top 17%)
35K21.75 mi0.75 mi10013+2801978+1161978+1164508(Top 17%)404(Top 4%)404(Top 8%)
23M23.00 mi1.25 mi9641+3721835+1431835+1434962(Top 19%)526(Top 5%)526(Top 11%)
24M24.00 mi1.00 mi9353+2881734+1011734+1014637(Top 17%)482(Top 4%)482(Top 10%)
40K24.85 mi0.85 mi9112+2411661+731661+734189(Top 16%)457(Top 4%)457(Top 9%)
25.2M25.20 mi0.35 mi9025+871626+351626+354192(Top 16%)518(Top 5%)518(Top 11%)
Finish26.22 mi1.02 mi8761+2641551+751551+753951(Top 15%)458(Top 4%)458(Top 9%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11645

Females

2696

F18-39

2696

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12118

Females

2931

F18-39

2931

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11645

Females

2696

F18-39

2696

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

10639

Females

2219

F18-39

2219

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11004

Females

2346

F18-39

2346

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

10395

Females

2172

F18-39

2172

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9084

Females

1734

F18-39

1734

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

7865

Females

1353

F18-39

1353

20M→21M

20.0 - 21.0 mi

Top 23%
×8story building
+106ft-24ft

Overall

6041

Females

825

F18-39

825

21M→35K

21.0 - 21.8 mi

Top 17%
×7story building
+17ft-86ft

Overall

4508

Females

404

F18-39

404

35K→23M

21.8 - 23.0 mi

Top 19%
×5story building
+23ft-63ft

Overall

4962

Females

526

F18-39

526

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4637

Females

482

F18-39

482

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4189

Females

457

F18-39

457

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4192

Females

518

F18-39

518

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2story building
+22ft-21ft

Overall

3951

Females

458

F18-39

458

Passing Analysis

Category:
Athletes Passed
3886*
Passed By
486
Net Change
+3400
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12161
5K → 10K322284+38#12161#12123
10K → 15K324103+221#12123#11902
15K → 20K38432+352#11902#11550
20K → Half5714+43#11550#11507
Half → 25K24328+215#11507#11292
25K → 30K46020+440#11292#10852
30K → 20M252*3+249#10852#10603
20M → 21M3111+310#10603#10293
21M → 35K280*0+280#10293#10013
35K → 23M373*1+372#10013#9641
23M → 24M2880+288#9641#9353
24M → 40K2410+241#9353#9112
40K → 25.2M870+87#9112#9025
25.2M → Finish2640+264#9025#8761
TOTALS3886*486+3400

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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