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BOSTON MARATHON 2023

Isabelle Gelinas

Bib: 20280•F

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 39%
Masters (Masters Women)
#0 / 6539
Top 26%
Division (F40-44)
#0 / 1878
Top 46%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:48
Rank: #16187
Start → 5K
25:48 | 8:18/mi
10K· 6.21 mi
50:43
Rank: #15558 (+629)
5K → 10K
24:55 | 8:01/mi
15K· 9.32 mi
1:15:50
Rank: #15396 (+162)
10K → 15K
25:07 | 8:05/mi
20K· 12.43 mi
1:41:19
Rank: #15273 (+123)
15K → 20K
25:29 | 8:12/mi
Half· 13.11 mi
1:46:52
Rank: #15266 (+7)
20K → Half
5:33 | 8:08/mi
25K· 15.53 mi
2:06:50
Rank: #15096 (+170)
Half → 25K
19:58 | 8:14/mi
30K· 18.64 mi
2:33:02
Rank: #14883 (+213)
25K → 30K
26:12 | 8:26/mi
20M
2:44:38
Rank: #14790 (+93)
30K → 20M
11:36 | 8:32/mi
21M
2:53:41
Rank: #14695 (+95)
20M → 21M
9:03 | 9:03/mi
35K· 21.75 mi
3:00:01
Rank: #14702 (-7)
21M → 35K
6:20 | 8:28/mi
23M
3:10:46
Rank: #14622 (+80)
35K → 23M
10:45 | 8:35/mi
24M
3:18:54
Rank: #14492 (+130)
23M → 24M
8:08 | 8:08/mi
40K· 24.85 mi
3:25:56
Rank: #14376 (+116)
24M → 40K
7:02 | 8:14/mi
25.2M
3:28:46
Rank: #14261 (+115)
40K → 25.2M
2:50 | 8:12/mi
Finish· 26.22 mi
3:37:07
Rank: #14221 (+40)
25.2M → Finish
8:21 | 8:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:52
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:50:15
Pace8:25 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:5925:488:1825:48
8:18
-
10K
6.21 mi11:42:5450:438:1024:55
8:01
-0:17
15K
9.32 mi12:08:011:15:508:0825:07
8:05
+0:04
20K
12.43 mi12:33:301:41:198:0925:29
8:12
+0:07
Half
13.11 mi12:39:031:46:528:095:33
8:08
-0:04
25K
15.53 mi12:59:012:06:508:1019:58
8:14
+0:06
30K
18.64 mi13:25:132:33:028:1326:12
8:26
+0:12
20M
20.00 mi13:36:492:44:388:1411:36
8:32
+0:06
21M
21.00 mi13:45:522:53:418:169:03
9:03
+0:31
35K
21.75 mi13:52:123:00:018:176:20
8:28
-0:35
23M
23.00 mi14:02:573:10:468:1810:45
8:35
+0:07
24M
24.00 mi14:11:053:18:548:178:08
8:08
-0:27
40K
24.85 mi14:18:073:25:568:177:02
8:14
+0:06
25.2M
25.20 mi14:20:573:28:468:172:50
8:12
-0:02
Finish
26.22 mi14:29:183:37:078:178:21
8:12
0:00

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

8:01 /mi

Average Pace

8:17 /mi

Slowest Pace

9:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:28:04

96% of race

Time at Steady Pace

9:03

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:17 /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 mi11:17:5925:488:1825:48
8:18
#16187
10K
6.21 mi11:42:5450:438:1024:55
8:01
#15558
15K
9.32 mi12:08:011:15:508:0825:07
8:05
#15396
20K
12.43 mi12:33:301:41:198:0925:29
8:12
#15273
Half
13.11 mi12:39:031:46:528:095:33
8:08
#15266
25K
15.53 mi12:59:012:06:508:1019:58
8:14
#15096
30K
18.64 mi13:25:132:33:028:1326:12
8:26
#14883
20M
20.00 mi13:36:492:44:388:1411:36
8:32
#14790
21M
21.00 mi13:45:522:53:418:169:03
9:03
#14695
35K
21.75 mi13:52:123:00:018:176:20
8:28
#14702
23M
23.00 mi14:02:573:10:468:1810:45
8:35
#14622
24M
24.00 mi14:11:053:18:548:178:08
8:08
#14492
40K
24.85 mi14:18:073:25:568:177:02
8:14
#14376
25.2M
25.20 mi14:20:573:28:468:172:50
8:12
#14261
Finish
26.22 mi14:29:183:37:078:178:21
8:12
#14221
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi161875397539715069(Top 57%)4713(Top 41%)4713(Top 251%)
10K6.21 mi3.10 mi15558+6295001+3965001+39614961(Top 56%)4648(Top 41%)4648(Top 247%)
15K9.32 mi3.11 mi15396+1624912+894912+8915069(Top 57%)4713(Top 41%)4713(Top 251%)
20K12.43 mi3.11 mi15273+1234853+594853+5914974(Top 56%)4698(Top 41%)4698(Top 250%)
Half13.11 mi0.68 mi15266+74854-14854-115353(Top 58%)4887(Top 43%)4887(Top 260%)
25K15.53 mi2.42 mi15096+1704769+854769+8514497(Top 54%)4512(Top 39%)4512(Top 240%)
30K18.64 mi3.11 mi14883+2134669+1004669+10013898(Top 52%)4272(Top 37%)4272(Top 227%)
20M20.00 mi1.36 mi14790+934632+374632+3713865(Top 52%)4334(Top 38%)4334(Top 231%)
21M21.00 mi1.00 mi14695+954605+274605+2713707(Top 51%)4331(Top 38%)4331(Top 231%)
35K21.75 mi0.75 mi14702-74622-174622-1715121(Top 57%)5172(Top 45%)5172(Top 275%)
23M23.00 mi1.25 mi14622+804599+234599+2313738(Top 52%)4466(Top 39%)4466(Top 238%)
24M24.00 mi1.00 mi14492+1304549+504549+5012179(Top 46%)3690(Top 32%)3690(Top 196%)
40K24.85 mi0.85 mi14376+1164501+484501+4811590(Top 44%)3468(Top 30%)3468(Top 185%)
25.2M25.20 mi0.35 mi14261+1154445+564445+567650(Top 29%)1713(Top 15%)1713(Top 91%)
Finish26.22 mi1.02 mi14221+404440+54440+513447(Top 51%)4451(Top 39%)4451(Top 237%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

15069

Females

4713

F40-44

4713

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

14961

Females

4648

F40-44

4648

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

15069

Females

4713

F40-44

4713

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

14974

Females

4698

F40-44

4698

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

15353

Females

4887

F40-44

4887

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

14497

Females

4512

F40-44

4512

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

13898

Females

4272

F40-44

4272

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

13865

Females

4334

F40-44

4334

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

13707

Females

4331

F40-44

4331

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

15121

Females

5172

F40-44

5172

35K→23M

21.8 - 23.0 mi

Top 52%
×5stories
+23ft-63ft

Overall

13738

Females

4466

F40-44

4466

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

12179

Females

3690

F40-44

3690

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11590

Females

3468

F40-44

3468

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7650

Females

1713

F40-44

1713

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2stories
+22ft-21ft

Overall

13447

Females

4451

F40-44

4451

Passing Analysis

Category:
Athletes Passed
2697
Passed By
731
Net Change
+1966
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16187
5K → 10K72697+629#16187#15558
10K → 15K274112+162#15558#15396
15K → 20K230107+123#15396#15273
20K → Half3932+7#15273#15266
Half → 25K22050+170#15266#15096
25K → 30K29178+213#15096#14883
30K → 20M12936+93#14883#14790
20M → 21M13843+95#14790#14695
21M → 35K4855-7#14695#14702
35K → 23M12444+80#14702#14622
23M → 24M14717+130#14622#14492
24M → 40K12610+116#14492#14376
40K → 25.2M1150+115#14376#14261
25.2M → Finish9050+40#14261#14221
TOTALS2697731+1966
📊

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