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BOSTON MARATHON 2023

Ellen Mcgrath

Bib: 19616•F

NY

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:41/mi
26:58
↑ 97↓ 3451.5%
10K· 6.21 mi
8:37/mi
53:43
↑ 79↓ 1380.4%
15K· 9.32 mi
8:33/mi
1:20:17
↑ 67↓ 78
20K· 12.43 mi
8:41/mi
1:47:17
↑ 106↓ 860.1%
Half· 13.11 mi
8:43/mi
1:53:14
↑ 19↓ 370.5%
25K· 15.53 mi
8:55/mi
2:14:51
↑ 66↓ 880.2%
30K· 18.64 mi
8:59/mi
2:42:45
↑ 181↓ 1480.2%
20M
8:56/mi
2:54:53
↑ 64↓ 500.2%
21M
9:56/mi
3:04:49
↑ 106↓ 241.6%
35K· 21.75 mi
9:48/mi
3:12:09
↑ 17↓ 861.7%
23M
10:06/mi
3:24:48
↑ 23↓ 630.6%
24M
9:38/mi
3:34:26
↓ 821.3%
40K· 24.85 mi
10:19/mi
3:43:15
↓ 200.3%
25.2M
10:50/mi
3:46:59
↑ 13↓ 160.2%
Finish· 26.22 mi
8:58/mi
3:56:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:14
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time2:02:53
Pace9:22 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4626:588:4126:58
8:41
-
10K
6.21 mi11:47:3153:438:3926:45
8:37
-0:04
15K
9.32 mi12:14:051:20:178:3726:34
8:33
-0:04
20K
12.43 mi12:41:051:47:178:3827:00
8:41
+0:08
Half
13.11 mi12:47:021:53:148:385:57
8:43
+0:02
25K
15.53 mi13:08:392:14:518:4121:37
8:55
+0:12
30K
18.64 mi13:36:332:42:458:4427:54
8:59
+0:04
20M
20.00 mi13:48:412:54:538:4512:08
8:56
-0:03
21M
21.00 mi13:58:373:04:498:489:56
9:56
+1:00
35K
21.75 mi14:05:573:12:098:507:20
9:48
-0:08
23M
23.00 mi14:18:363:24:488:5412:39
10:06
+0:18
24M
24.00 mi14:28:143:34:268:569:38
9:38
-0:28
40K
24.85 mi14:37:033:43:158:598:49
10:19
+0:41
25.2M
25.20 mi14:40:473:46:599:003:44
10:50
+0:31
Finish
26.22 mi14:49:553:56:079:019:08
8:58
-1:52

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

8:33 /mi

Average Pace

9:01 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

26:34

11% of race

Time at Steady Pace

2:37:27

67% of race

Time at Slower Pace

52:06

22% of race

Average Pace: 9:00 /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 mi11:20:4626:588:4126:58
8:41
#18753
10K
6.21 mi11:47:3153:438:3926:45
8:37
#18777
15K
9.32 mi12:14:051:20:178:3726:34
8:33
#18560
20K
12.43 mi12:41:051:47:178:3827:00
8:41
#18400
Half
13.11 mi12:47:021:53:148:385:57
8:43
#18434
25K
15.53 mi13:08:392:14:518:4121:37
8:55
#18467
30K
18.64 mi13:36:332:42:458:4427:54
8:59
#18166
20M
20.00 mi13:48:412:54:538:4512:08
8:56
#17997
21M
21.00 mi13:58:373:04:498:489:56
9:56
#17979
35K
21.75 mi14:05:573:12:098:507:20
9:48
#18141
23M
23.00 mi14:18:363:24:488:5412:39
10:06
#18327
24M
24.00 mi14:28:143:34:268:569:38
9:38
#18421
40K
24.85 mi14:37:033:43:158:598:49
10:19
#18561
25.2M
25.20 mi14:40:473:46:599:003:44
10:50
#18604
Finish
26.22 mi14:49:553:56:079:019:08
8:58
#18579
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi187537043704318170(Top 68%)6603(Top 58%)6603(Top 135%)
10K6.21 mi3.10 mi18777-246996+476996+4718902(Top 71%)7029(Top 62%)7029(Top 144%)
15K9.32 mi3.11 mi18560+2176854+1426854+14218170(Top 68%)6603(Top 58%)6603(Top 135%)
20K12.43 mi3.11 mi18400+1606752+1026752+10218070(Top 68%)6549(Top 57%)6549(Top 134%)
Half13.11 mi0.68 mi18434-346767-156767-1519099(Top 72%)7141(Top 63%)7141(Top 146%)
25K15.53 mi2.42 mi18467-336812-456812-4518551(Top 70%)6883(Top 60%)6883(Top 141%)
30K18.64 mi3.11 mi18166+3016670+1426670+14217079(Top 64%)6115(Top 54%)6115(Top 125%)
20M20.00 mi1.36 mi17997+1696586+846586+8416195(Top 61%)5692(Top 50%)5692(Top 117%)
21M21.00 mi1.00 mi17979+186580+66580+617809(Top 67%)6648(Top 58%)6648(Top 136%)
35K21.75 mi0.75 mi18141-1626689-1096689-10920767(Top 78%)8367(Top 73%)8367(Top 171%)
23M23.00 mi1.25 mi18327-1866807-1186807-11820295(Top 76%)8125(Top 71%)8125(Top 166%)
24M24.00 mi1.00 mi18421-946869-626869-6219693(Top 74%)7802(Top 68%)7802(Top 160%)
40K24.85 mi0.85 mi18561-1406955-866955-8620778(Top 78%)8475(Top 74%)8475(Top 174%)
25.2M25.20 mi0.35 mi18604-436984-296984-2920047(Top 75%)8078(Top 71%)8078(Top 165%)
Finish26.22 mi1.02 mi18579+256983+16983+117815(Top 67%)6819(Top 60%)6819(Top 140%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

18170

Females

6603

F18-39

6603

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

18902

Females

7029

F18-39

7029

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

18170

Females

6603

F18-39

6603

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

18070

Females

6549

F18-39

6549

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

19099

Females

7141

F18-39

7141

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

18551

Females

6883

F18-39

6883

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

17079

Females

6115

F18-39

6115

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

16195

Females

5692

F18-39

5692

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

17809

Females

6648

F18-39

6648

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

20767

Females

8367

F18-39

8367

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

20295

Females

8125

F18-39

8125

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

19693

Females

7802

F18-39

7802

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20778

Females

8475

F18-39

8475

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

20047

Females

8078

F18-39

8078

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

17815

Females

6819

F18-39

6819

Passing Analysis

Category:
Athletes Passed
1839
Passed By
1665
Net Change
+174
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18753
5K → 10K335359-24#18753#18777
10K → 15K30588+217#18777#18560
15K → 20K24686+160#18560#18400
20K → Half2054-34#18400#18434
Half → 25K116149-33#18434#18467
25K → 30K34948+301#18467#18166
30K → 20M18920+169#18166#17997
20M → 21M10183+18#17997#17979
21M → 35K14176-162#17979#18141
35K → 23M34220-186#18141#18327
23M → 24M25119-94#18327#18421
24M → 40K24164-140#18421#18561
40K → 25.2M1154-43#18561#18604
25.2M → Finish7045+25#18604#18579
TOTALS18391665+174
📊

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