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BOSTON MARATHON 2023

Mariela Kelly

Bib: 19987•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 42%
Masters (Masters Women)
#0 / 6539
Top 30%
Division (F50-54)
#0 / 1207
Top 22%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:40
Rank: #15899
Start → 5K
25:40 | 8:16/mi
10K· 6.21 mi
50:17
Rank: #15069 (+830)
5K → 10K
24:37 | 7:55/mi
15K· 9.32 mi
1:15:03
Rank: #14766 (+303)
10K → 15K
24:46 | 7:58/mi
20K· 12.43 mi
1:39:54
Rank: #14386 (+380)
15K → 20K
24:51 | 8:00/mi
Half· 13.11 mi
1:45:20
Rank: #14365 (+21)
20K → Half
5:26 | 7:58/mi
25K· 15.53 mi
2:05:16
Rank: #14369 (-4)
Half → 25K
19:56 | 8:13/mi
30K· 18.64 mi
2:32:01
Rank: #14490 (-121)
25K → 30K
26:45 | 8:37/mi
20M
2:44:24
Rank: #14700 (-210)
30K → 20M
12:23 | 9:07/mi
21M
2:53:31
Rank: #14644 (+56)
20M → 21M
9:07 | 9:07/mi
35K· 21.75 mi
2:59:54
Rank: #14659 (-15)
21M → 35K
6:23 | 8:32/mi
23M
3:11:09
Rank: #14749 (-90)
35K → 23M
11:15 | 8:59/mi
24M
3:19:46
Rank: #14736 (+13)
23M → 24M
8:37 | 8:37/mi
40K· 24.85 mi
3:27:15
Rank: #14707 (+29)
24M → 40K
7:29 | 8:45/mi
25.2M
3:30:37
Rank: #14730 (-23)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:39:46
Rank: #14881 (-151)
25.2M → Finish
9:09 | 8:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:20
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time1:54:26
Pace8:44 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:2625:408:1625:40
8:16
-
10K
6.21 mi12:06:0350:178:0624:37
7:55
-0:21
15K
9.32 mi12:30:491:15:038:0324:46
7:58
+0:03
20K
12.43 mi12:55:401:39:548:0224:51
8:00
+0:02
Half
13.11 mi13:01:061:45:208:025:26
7:58
-0:02
25K
15.53 mi13:21:022:05:168:0419:56
8:13
+0:15
30K
18.64 mi13:47:472:32:018:0926:45
8:37
+0:24
20M
20.00 mi14:00:102:44:248:1312:23
9:07
+0:30
21M
21.00 mi14:09:172:53:318:169:07
9:07
0:00
35K
21.75 mi14:15:402:59:548:166:23
8:32
-0:35
23M
23.00 mi14:26:553:11:098:1911:15
8:59
+0:27
24M
24.00 mi14:35:323:19:468:198:37
8:37
-0:22
40K
24.85 mi14:43:013:27:158:207:29
8:45
+0:08
25.2M
25.20 mi14:46:233:30:378:213:22
9:46
+1:01
Finish
26.22 mi14:55:323:39:468:239:09
8:59
-0:47

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

7:55 /mi

Average Pace

8:23 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:16

57% of race

Time at Steady Pace

49:14

22% of race

Time at Slower Pace

45:16

21% of race

Average Pace: 8:23 /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 mi11:41:2625:408:1625:40
8:16
#15899
10K
6.21 mi12:06:0350:178:0624:37
7:55
#15069
15K
9.32 mi12:30:491:15:038:0324:46
7:58
#14766
20K
12.43 mi12:55:401:39:548:0224:51
8:00
#14386
Half
13.11 mi13:01:061:45:208:025:26
7:58
#14365
25K
15.53 mi13:21:022:05:168:0419:56
8:13
#14369
30K
18.64 mi13:47:472:32:018:0926:45
8:37
#14490
20M
20.00 mi14:00:102:44:248:1312:23
9:07
#14700
21M
21.00 mi14:09:172:53:318:169:07
9:07
#14644
35K
21.75 mi14:15:402:59:548:166:23
8:32
#14659
23M
23.00 mi14:26:553:11:098:1911:15
8:59
#14749
24M
24.00 mi14:35:323:19:468:198:37
8:37
#14736
40K
24.85 mi14:43:013:27:158:207:29
8:45
#14707
25.2M
25.20 mi14:46:233:30:378:213:22
9:46
#14730
Finish
26.22 mi14:55:323:39:468:239:09
8:59
#14881
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi158995217521714169(Top 53%)4186(Top 37%)4186(Top 347%)
10K6.21 mi3.10 mi15069+8304692+5254692+52514208(Top 53%)4186(Top 37%)4186(Top 347%)
15K9.32 mi3.11 mi14766+3034517+1754517+17514169(Top 53%)4186(Top 37%)4186(Top 347%)
20K12.43 mi3.11 mi14386+3804306+2114306+21113437(Top 50%)3791(Top 33%)3791(Top 314%)
Half13.11 mi0.68 mi14365+214298+84298+814161(Top 53%)4192(Top 37%)4192(Top 347%)
25K15.53 mi2.42 mi14369-44327-294327-2914411(Top 54%)4463(Top 39%)4463(Top 370%)
30K18.64 mi3.11 mi14490-1214445-1184445-11814979(Top 56%)4915(Top 43%)4915(Top 407%)
20M20.00 mi1.36 mi14700-2104582-1374582-13717162(Top 64%)6271(Top 55%)6271(Top 520%)
21M21.00 mi1.00 mi14644+564576+64576+614029(Top 53%)4510(Top 39%)4510(Top 374%)
35K21.75 mi0.75 mi14659-154603-274603-2715494(Top 58%)5400(Top 47%)5400(Top 447%)
23M23.00 mi1.25 mi14749-904684-814684-8115998(Top 60%)5737(Top 50%)5737(Top 475%)
24M24.00 mi1.00 mi14736+134701-174701-1715174(Top 57%)5325(Top 47%)5325(Top 441%)
40K24.85 mi0.85 mi14707+294703-24703-214841(Top 56%)5203(Top 46%)5203(Top 431%)
25.2M25.20 mi0.35 mi14730-234732-294732-2916394(Top 62%)6088(Top 53%)6088(Top 504%)
Finish26.22 mi1.02 mi14881-1514836-1044836-10417881(Top 67%)6843(Top 60%)6843(Top 567%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

14169

Females

4186

F50-54

4186

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

14208

Females

4186

F50-54

4186

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

14169

Females

4186

F50-54

4186

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

13437

Females

3791

F50-54

3791

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

14161

Females

4192

F50-54

4192

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

14411

Females

4463

F50-54

4463

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

14979

Females

4915

F50-54

4915

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

17162

Females

6271

F50-54

6271

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14029

Females

4510

F50-54

4510

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

15494

Females

5400

F50-54

5400

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

15998

Females

5737

F50-54

5737

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

15174

Females

5325

F50-54

5325

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

14841

Females

5203

F50-54

5203

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16394

Females

6088

F50-54

6088

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

17881

Females

6843

F50-54

6843

Passing Analysis

Category:
Athletes Passed
2443
Passed By
1425
Net Change
+1018
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15899
5K → 10K89767+830#15899#15069
10K → 15K36562+303#15069#14766
15K → 20K42040+380#14766#14386
20K → Half4322+21#14386#14365
Half → 25K148152-4#14365#14369
25K → 30K133254-121#14369#14490
30K → 20M43253-210#14490#14700
20M → 21M11458+56#14700#14644
21M → 35K4459-15#14644#14659
35K → 23M48138-90#14659#14749
23M → 24M7360+13#14749#14736
24M → 40K7546+29#14736#14707
40K → 25.2M2144-23#14707#14730
25.2M → Finish19170-151#14730#14881
TOTALS24431425+1018
📊

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