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BOSTON MARATHON 2023

Cynthia Roskamp

Bib: 24165•F

MI

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 46%
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
9:56/mi
30:51
↑ 97↓ 3451.5%
10K· 6.21 mi
9:09/mi
59:17
↑ 79↓ 1380.4%
15K· 9.32 mi
9:02/mi
1:27:20
↑ 67↓ 78
20K· 12.43 mi
9:13/mi
1:55:58
↑ 106↓ 860.1%
Half· 13.11 mi
9:07/mi
2:02:11
↑ 19↓ 370.5%
25K· 15.53 mi
9:17/mi
2:24:42
↑ 66↓ 880.2%
30K· 18.64 mi
9:39/mi
2:54:42
↑ 181↓ 1480.2%
20M
9:49/mi
3:08:03
↑ 64↓ 500.2%
21M
10:50/mi
3:18:53
↑ 106↓ 241.6%
35K· 21.75 mi
9:29/mi
3:25:59
↑ 17↓ 861.7%
23M
10:14/mi
3:38:48
↑ 23↓ 630.6%
24M
9:54/mi
3:48:42
↓ 821.3%
40K· 24.85 mi
10:18/mi
3:57:30
↓ 200.3%
25.2M
11:16/mi
4:01:23
↑ 13↓ 160.2%
Finish· 26.22 mi
9:41/mi
4:11:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:11
Pace9:19 /mi
2nd Half
Distance13.11 mi
Time2:09:04
Pace9:51 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:5830:519:5630:51
9:56
-
10K
6.21 mi12:20:2459:179:3228:26
9:09
-0:47
15K
9.32 mi12:48:271:27:209:2228:03
9:02
-0:07
20K
12.43 mi13:17:051:55:589:2028:38
9:13
+0:11
Half
13.11 mi13:23:182:02:119:196:13
9:07
-0:06
25K
15.53 mi13:45:492:24:429:1922:31
9:17
+0:10
30K
18.64 mi14:15:492:54:429:2230:00
9:39
+0:22
20M
20.00 mi14:29:103:08:039:2413:21
9:49
+0:10
21M
21.00 mi14:40:003:18:539:2810:50
10:50
+1:01
35K
21.75 mi14:47:063:25:599:287:06
9:29
-1:21
23M
23.00 mi14:59:553:38:489:3112:49
10:14
+0:45
24M
24.00 mi15:09:493:48:429:329:54
9:54
-0:20
40K
24.85 mi15:18:373:57:309:338:48
10:18
+0:24
25.2M
25.20 mi15:22:304:01:239:353:53
11:16
+0:58
Finish
26.22 mi15:32:224:11:159:359:52
9:41
-1:35

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

9:02 /mi

Average Pace

9:35 /mi

Slowest Pace

11:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:51

45% of race

Time at Steady Pace

1:41:04

40% of race

Time at Slower Pace

36:20

14% of race

Average Pace: 9:35 /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 mi11:51:5830:519:5630:51
9:56
#23285
10K
6.21 mi12:20:2459:179:3228:26
9:09
#22442
15K
9.32 mi12:48:271:27:209:2228:03
9:02
#21898
20K
12.43 mi13:17:051:55:589:2028:38
9:13
#21615
Half
13.11 mi13:23:182:02:119:196:13
9:07
#21567
25K
15.53 mi13:45:492:24:429:1922:31
9:17
#21330
30K
18.64 mi14:15:492:54:429:2230:00
9:39
#21084
20M
20.00 mi14:29:103:08:039:2413:21
9:49
#20968
21M
21.00 mi14:40:003:18:539:2810:50
10:50
#20919
35K
21.75 mi14:47:063:25:599:287:06
9:29
#20878
23M
23.00 mi14:59:553:38:489:3112:49
10:14
#20841
24M
24.00 mi15:09:493:48:429:329:54
9:54
#20812
40K
24.85 mi15:18:373:57:309:338:48
10:18
#20815
25.2M
25.20 mi15:22:304:01:239:353:53
11:16
#20810
Finish
26.22 mi15:32:224:11:159:359:52
9:41
#20797
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi232859541954120638(Top 78%)8038(Top 70%)8038(Top 1525%)
10K6.21 mi3.10 mi22442+8439075+4669075+46621482(Top 81%)8549(Top 75%)8549(Top 1622%)
15K9.32 mi3.11 mi21898+5448783+2928783+29220638(Top 78%)8038(Top 70%)8038(Top 1525%)
20K12.43 mi3.11 mi21615+2838620+1638620+16320648(Top 78%)8031(Top 70%)8031(Top 1524%)
Half13.11 mi0.68 mi21567+488586+348586+3420915(Top 79%)8210(Top 72%)8210(Top 1558%)
25K15.53 mi2.42 mi21330+2378446+1408446+14020169(Top 76%)7794(Top 68%)7794(Top 1479%)
30K18.64 mi3.11 mi21084+2468333+1138333+11319998(Top 75%)7770(Top 68%)7770(Top 1474%)
20M20.00 mi1.36 mi20968+1168279+548279+5419952(Top 75%)7826(Top 69%)7826(Top 1485%)
21M21.00 mi1.00 mi20919+498264+158264+1520478(Top 77%)8188(Top 72%)8188(Top 1554%)
35K21.75 mi0.75 mi20878+418256+88256+819862(Top 75%)7856(Top 69%)7856(Top 1491%)
23M23.00 mi1.25 mi20841+378246+108246+1020693(Top 78%)8347(Top 73%)8347(Top 1584%)
24M24.00 mi1.00 mi20812+298238+88238+820535(Top 77%)8289(Top 73%)8289(Top 1573%)
40K24.85 mi0.85 mi20815-38249-118249-1120749(Top 78%)8474(Top 74%)8474(Top 1608%)
25.2M25.20 mi0.35 mi20810+58253-48253-421100(Top 79%)8658(Top 76%)8658(Top 1643%)
Finish26.22 mi1.02 mi20797+138255-28255-220765(Top 78%)8450(Top 74%)8450(Top 1603%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

20638

Females

8038

F60-64

8038

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

21482

Females

8549

F60-64

8549

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

20638

Females

8038

F60-64

8038

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

20648

Females

8031

F60-64

8031

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

20915

Females

8210

F60-64

8210

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

20169

Females

7794

F60-64

7794

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

19998

Females

7770

F60-64

7770

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

19952

Females

7826

F60-64

7826

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

20478

Females

8188

F60-64

8188

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

19862

Females

7856

F60-64

7856

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

20693

Females

8347

F60-64

8347

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

20535

Females

8289

F60-64

8289

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20749

Females

8474

F60-64

8474

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21100

Females

8658

F60-64

8658

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

20765

Females

8450

F60-64

8450

Passing Analysis

Category:
Athletes Passed
2844
Passed By
356
Net Change
+2488
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23285
5K → 10K86623+843#23285#22442
10K → 15K55915+544#22442#21898
15K → 20K30320+283#21898#21615
20K → Half568+48#21615#21567
Half → 25K25215+237#21567#21330
25K → 30K28337+246#21330#21084
30K → 20M13418+116#21084#20968
20M → 21M8839+49#20968#20919
21M → 35K5716+41#20919#20878
35K → 23M9255+37#20878#20841
23M → 24M5526+29#20841#20812
24M → 40K4144-3#20812#20815
40K → 25.2M1712+5#20815#20810
25.2M → Finish4128+13#20810#20797
TOTALS2844356+2488
📊

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