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BOSTON MARATHON 2023

Rosemary Mccool

Bib: 23646•F

AZ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F60-64)
#0 / 527
Top 32%
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
9:13/mi
28:37
↑ 97↓ 3451.5%
10K· 6.21 mi
9:15/mi
57:21
↑ 79↓ 1380.4%
15K· 9.32 mi
9:18/mi
1:26:14
↑ 67↓ 78
20K· 12.43 mi
9:16/mi
1:55:02
↑ 106↓ 860.1%
Half· 13.11 mi
9:05/mi
2:01:14
↑ 19↓ 370.5%
25K· 15.53 mi
9:19/mi
2:23:50
↑ 66↓ 880.2%
30K· 18.64 mi
9:30/mi
2:53:21
↑ 181↓ 1480.2%
20M
9:24/mi
3:06:07
↑ 64↓ 500.2%
21M
9:52/mi
3:15:59
↑ 106↓ 241.6%
35K· 21.75 mi
9:01/mi
3:22:44
↑ 17↓ 861.7%
23M
9:13/mi
3:34:17
↑ 23↓ 630.6%
24M
8:55/mi
3:43:12
↓ 821.3%
40K· 24.85 mi
9:13/mi
3:51:05
↓ 200.3%
25.2M
9:57/mi
3:54:31
↑ 13↓ 160.2%
Finish· 26.22 mi
9:10/mi
4:03:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:14
Pace9:15 /mi
2nd Half
Distance13.11 mi
Time2:02:37
Pace9:21 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:5328:379:1328:37
9:13
-
10K
6.21 mi11:52:3757:219:1428:44
9:15
+0:02
15K
9.32 mi12:21:301:26:149:1528:53
9:18
+0:03
20K
12.43 mi12:50:181:55:029:1528:48
9:16
-0:02
Half
13.11 mi12:56:302:01:149:156:12
9:05
-0:11
25K
15.53 mi13:19:062:23:509:1622:36
9:19
+0:14
30K
18.64 mi13:48:372:53:219:1829:31
9:30
+0:11
20M
20.00 mi14:01:233:06:079:1812:46
9:24
-0:06
21M
21.00 mi14:11:153:15:599:209:52
9:52
+0:28
35K
21.75 mi14:18:003:22:449:196:45
9:01
-0:51
23M
23.00 mi14:29:333:34:179:1911:33
9:13
+0:12
24M
24.00 mi14:38:283:43:129:188:55
8:55
-0:18
40K
24.85 mi14:46:213:51:059:187:53
9:13
+0:18
25.2M
25.20 mi14:49:473:54:319:183:26
9:57
+0:44
Finish
26.22 mi14:59:074:03:519:189:20
9:10
-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

8:55 /mi

Average Pace

9:18 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:50:33

95% of race

Time at Steady Pace

13:18

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:18 /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 mi11:23:5328:379:1328:37
9:13
#21242
10K
6.21 mi11:52:3757:219:1428:44
9:15
#21502
15K
9.32 mi12:21:301:26:149:1528:53
9:18
#21536
20K
12.43 mi12:50:181:55:029:1528:48
9:16
#21372
Half
13.11 mi12:56:302:01:149:156:12
9:05
#21333
25K
15.53 mi13:19:062:23:509:1622:36
9:19
#21150
30K
18.64 mi13:48:372:53:219:1829:31
9:30
#20818
20M
20.00 mi14:01:233:06:079:1812:46
9:24
#20626
21M
21.00 mi14:11:153:15:599:209:52
9:52
#20455
35K
21.75 mi14:18:003:22:449:196:45
9:01
#20349
23M
23.00 mi14:29:333:34:179:1911:33
9:13
#20186
24M
24.00 mi14:38:283:43:129:188:55
8:55
#20071
40K
24.85 mi14:46:213:51:059:187:53
9:13
#19969
25.2M
25.20 mi14:49:473:54:319:183:26
9:57
#19924
Finish
26.22 mi14:59:074:03:519:189:20
9:10
#19885
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi212428495849521621(Top 81%)8566(Top 75%)8566(Top 1625%)
10K6.21 mi3.10 mi21502-2608581-868581-8621778(Top 82%)8704(Top 76%)8704(Top 1652%)
15K9.32 mi3.11 mi21536-348577+48577+421621(Top 81%)8566(Top 75%)8566(Top 1625%)
20K12.43 mi3.11 mi21372+1648477+1008477+10020863(Top 78%)8146(Top 71%)8146(Top 1546%)
Half13.11 mi0.68 mi21333+398451+268451+2620800(Top 78%)8124(Top 71%)8124(Top 1542%)
25K15.53 mi2.42 mi21150+1838357+948357+9420267(Top 76%)7844(Top 69%)7844(Top 1488%)
30K18.64 mi3.11 mi20818+3328170+1878170+18719448(Top 73%)7442(Top 65%)7442(Top 1412%)
20M20.00 mi1.36 mi20626+1928092+788092+7818461(Top 69%)7009(Top 61%)7009(Top 1330%)
21M21.00 mi1.00 mi20455+1718001+918001+9117535(Top 66%)6503(Top 57%)6503(Top 1234%)
35K21.75 mi0.75 mi20349+1067958+437958+4318039(Top 68%)6870(Top 60%)6870(Top 1304%)
23M23.00 mi1.25 mi20186+1637872+867872+8617211(Top 65%)6413(Top 56%)6413(Top 1217%)
24M24.00 mi1.00 mi20071+1157818+547818+5416885(Top 63%)6300(Top 55%)6300(Top 1195%)
40K24.85 mi0.85 mi19969+1027767+517767+5117221(Top 65%)6533(Top 57%)6533(Top 1240%)
25.2M25.20 mi0.35 mi19924+457741+267741+2617276(Top 65%)6602(Top 58%)6602(Top 1253%)
Finish26.22 mi1.02 mi19885+397726+157726+1518757(Top 70%)7313(Top 64%)7313(Top 1388%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

21621

Females

8566

F60-64

8566

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

21778

Females

8704

F60-64

8704

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

21621

Females

8566

F60-64

8566

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

20863

Females

8146

F60-64

8146

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

20800

Females

8124

F60-64

8124

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

20267

Females

7844

F60-64

7844

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

19448

Females

7442

F60-64

7442

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18461

Females

7009

F60-64

7009

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

17535

Females

6503

F60-64

6503

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

18039

Females

6870

F60-64

6870

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

17211

Females

6413

F60-64

6413

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16885

Females

6300

F60-64

6300

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17221

Females

6533

F60-64

6533

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17276

Females

6602

F60-64

6602

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

18757

Females

7313

F60-64

7313

Passing Analysis

Category:
Athletes Passed
2144
Passed By
787
Net Change
+1357
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21242
5K → 10K155415-260#21242#21502
10K → 15K151185-34#21502#21536
15K → 20K23167+164#21536#21372
20K → Half4910+39#21372#21333
Half → 25K20825+183#21333#21150
25K → 30K35523+332#21150#20818
30K → 20M1964+192#20818#20626
20M → 21M1798+171#20626#20455
21M → 35K1148+106#20455#20349
35K → 23M1696+163#20349#20186
23M → 24M1183+115#20186#20071
24M → 40K1119+102#20071#19969
40K → 25.2M483+45#19969#19924
25.2M → Finish6021+39#19924#19885
TOTALS2144787+1357
📊

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