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BOSTON MARATHON 2023

Iris Merino

Bib: 19306•F

ON

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0:00
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 35%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:43
Rank: #18229
Start → 5K
26:43 | 8:36/mi
10K· 6.21 mi
52:47
Rank: #17874 (+355)
5K → 10K
26:04 | 8:23/mi
15K· 9.32 mi
1:18:45
Rank: #17511 (+363)
10K → 15K
25:58 | 8:21/mi
20K· 12.43 mi
1:44:23
Rank: #16938 (+573)
15K → 20K
25:38 | 8:15/mi
Half· 13.11 mi
1:49:52
Rank: #16826 (+112)
20K → Half
5:29 | 8:02/mi
25K· 15.53 mi
2:09:44
Rank: #16421 (+405)
Half → 25K
19:52 | 8:12/mi
30K· 18.64 mi
2:35:22
Rank: #15721 (+700)
25K → 30K
25:38 | 8:15/mi
20M
2:46:34
Rank: #15436 (+285)
30K → 20M
11:12 | 8:15/mi
21M
2:54:58
Rank: #15096 (+340)
20M → 21M
8:24 | 8:24/mi
35K· 21.75 mi
3:00:33
Rank: #14856 (+240)
21M → 35K
5:35 | 7:28/mi
23M
3:10:23
Rank: #14515 (+341)
35K → 23M
9:50 | 7:51/mi
24M
3:18:04
Rank: #14269 (+246)
23M → 24M
7:41 | 7:41/mi
40K· 24.85 mi
3:24:35
Rank: #13983 (+286)
24M → 40K
6:31 | 7:37/mi
25.2M
3:27:21
Rank: #13859 (+124)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
3:34:46
Rank: #13568 (+291)
25.2M → Finish
7:25 | 7:17/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:49:52
Pace8:23 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:44:54
Pace8:00 /mi
📊Negative Split: 4.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3826:438:3626:43
8:36
-
10K
6.21 mi11:46:4252:478:3026:04
8:23
-0:13
15K
9.32 mi12:12:401:18:458:2725:58
8:21
-0:02
20K
12.43 mi12:38:181:44:238:2425:38
8:15
-0:06
Half
13.11 mi12:43:471:49:528:235:29
8:02
-0:13
25K
15.53 mi13:03:392:09:448:2119:52
8:12
+0:10
30K
18.64 mi13:29:172:35:228:2025:38
8:15
+0:03
20M
20.00 mi13:40:292:46:348:2011:12
8:15
0:00
21M
21.00 mi13:48:532:54:588:208:24
8:24
+0:09
35K
21.75 mi13:54:283:00:338:185:35
7:28
-0:56
23M
23.00 mi14:04:183:10:238:179:50
7:51
+0:23
24M
24.00 mi14:11:593:18:048:157:41
7:41
-0:10
40K
24.85 mi14:18:303:24:358:146:31
7:37
-0:04
25.2M
25.20 mi14:21:163:27:218:142:46
8:01
+0:24
Finish
26.22 mi14:28:413:34:468:127:25
7:17
-0:44

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

7:17 /mi

Average Pace

8:12 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

37:02

17% of race

Time at Steady Pace

2:31:01

70% of race

Time at Slower Pace

26:43

12% of race

Average Pace: 8:11 /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 mi11:20:3826:438:3626:43
8:36
#18229
10K
6.21 mi11:46:4252:478:3026:04
8:23
#17874
15K
9.32 mi12:12:401:18:458:2725:58
8:21
#17511
20K
12.43 mi12:38:181:44:238:2425:38
8:15
#16938
Half
13.11 mi12:43:471:49:528:235:29
8:02
#16826
25K
15.53 mi13:03:392:09:448:2119:52
8:12
#16421
30K
18.64 mi13:29:172:35:228:2025:38
8:15
#15721
20M
20.00 mi13:40:292:46:348:2011:12
8:15
#15436
21M
21.00 mi13:48:532:54:588:208:24
8:24
#15096
35K
21.75 mi13:54:283:00:338:185:35
7:28
#14856
23M
23.00 mi14:04:183:10:238:179:50
7:51
#14515
24M
24.00 mi14:11:593:18:048:157:41
7:41
#14269
40K
24.85 mi14:18:303:24:358:146:31
7:37
#13983
25.2M
25.20 mi14:21:163:27:218:142:46
8:01
#13859
Finish
26.22 mi14:28:413:34:468:127:25
7:17
#13568
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi182296693669316905(Top 64%)5847(Top 51%)5847(Top 120%)
10K6.21 mi3.10 mi17874+3556448+2456448+24517520(Top 66%)6188(Top 54%)6188(Top 127%)
15K9.32 mi3.11 mi17511+3636219+2296219+22916905(Top 64%)5847(Top 51%)5847(Top 120%)
20K12.43 mi3.11 mi16938+5735888+3315888+33115274(Top 57%)4878(Top 43%)4878(Top 100%)
Half13.11 mi0.68 mi16826+1125815+735815+7314696(Top 55%)4492(Top 39%)4492(Top 92%)
25K15.53 mi2.42 mi16421+4055591+2245591+22414188(Top 53%)4328(Top 38%)4328(Top 89%)
30K18.64 mi3.11 mi15721+7005205+3865205+38612702(Top 48%)3589(Top 31%)3589(Top 73%)
20M20.00 mi1.36 mi15436+2855053+1525053+15211992(Top 45%)3278(Top 29%)3278(Top 67%)
21M21.00 mi1.00 mi15096+3404858+1954858+1959905(Top 37%)2351(Top 21%)2351(Top 48%)
35K21.75 mi0.75 mi14856+2404721+1374721+1378354(Top 31%)1656(Top 14%)1656(Top 34%)
23M23.00 mi1.25 mi14515+3414531+1904531+1908796(Top 33%)1943(Top 17%)1943(Top 40%)
24M24.00 mi1.00 mi14269+2464413+1184413+1189038(Top 34%)2132(Top 19%)2132(Top 44%)
40K24.85 mi0.85 mi13983+2864260+1534260+1537508(Top 28%)1581(Top 14%)1581(Top 32%)
25.2M25.20 mi0.35 mi13859+1244192+684192+686771(Top 25%)1357(Top 12%)1357(Top 28%)
Finish26.22 mi1.02 mi13568+2914025+1674025+1677026(Top 26%)1453(Top 13%)1453(Top 30%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

16905

Females

5847

F18-39

5847

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

17520

Females

6188

F18-39

6188

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

16905

Females

5847

F18-39

5847

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

15274

Females

4878

F18-39

4878

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

14696

Females

4492

F18-39

4492

Half→25K

13.1 - 15.5 mi

Top 53%
×4stories
+66ft-88ft

Overall

14188

Females

4328

F18-39

4328

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

12702

Females

3589

F18-39

3589

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

11992

Females

3278

F18-39

3278

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

9905

Females

2351

F18-39

2351

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8354

Females

1656

F18-39

1656

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

8796

Females

1943

F18-39

1943

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9038

Females

2132

F18-39

2132

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7508

Females

1581

F18-39

1581

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6771

Females

1357

F18-39

1357

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

7026

Females

1453

F18-39

1453

Passing Analysis

Category:
Athletes Passed
4950
Passed By
289
Net Change
+4661
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18229
5K → 10K539184+355#18229#17874
10K → 15K43471+363#17874#17511
15K → 20K58714+573#17511#16938
20K → Half1142+112#16938#16826
Half → 25K4138+405#16826#16421
25K → 30K7022+700#16421#15721
30K → 20M2883+285#15721#15436
20M → 21M3422+340#15436#15096
21M → 35K2400+240#15096#14856
35K → 23M3410+341#14856#14515
23M → 24M2471+246#14515#14269
24M → 40K2871+286#14269#13983
40K → 25.2M1240+124#13983#13859
25.2M → Finish2921+291#13859#13568
TOTALS4950289+4661
📊

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