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BOSTON MARATHON 2023

Cathleen Mcmahon

Bib: 15648•F

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 49%
Gender (Female)
#0 / 11423
Top 33%
Masters (Masters Women)
#0 / 6539
Top 20%
Division (F50-54)
#0 / 1207
Top 12%
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
7:23/mi
22:56
↑ 97↓ 3451.5%
10K· 6.21 mi
7:27/mi
46:05
↑ 79↓ 1380.4%
15K· 9.32 mi
7:36/mi
1:09:43
↑ 67↓ 78
20K· 12.43 mi
7:54/mi
1:34:15
↑ 106↓ 860.1%
Half· 13.11 mi
7:49/mi
1:39:35
↑ 19↓ 370.5%
25K· 15.53 mi
8:02/mi
1:59:04
↑ 66↓ 880.2%
30K· 18.64 mi
8:23/mi
2:25:07
↑ 181↓ 1480.2%
20M
8:40/mi
2:36:54
↑ 64↓ 500.2%
21M
9:32/mi
2:46:26
↑ 106↓ 241.6%
35K· 21.75 mi
8:27/mi
2:52:45
↑ 17↓ 861.7%
23M
9:02/mi
3:04:04
↑ 23↓ 630.6%
24M
8:55/mi
3:12:59
↓ 821.3%
40K· 24.85 mi
9:19/mi
3:20:57
↓ 200.3%
25.2M
9:54/mi
3:24:22
↑ 13↓ 160.2%
Finish· 26.22 mi
8:49/mi
3:33:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:35
Pace7:36 /mi
2nd Half
Distance13.11 mi
Time1:53:46
Pace8:41 /mi
📊Positive Split: 14.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:4722:567:2322:56
7:23
-
10K
6.21 mi11:16:5646:057:2523:09
7:27
+0:04
15K
9.32 mi11:40:341:09:437:2923:38
7:36
+0:09
20K
12.43 mi12:05:061:34:157:3524:32
7:54
+0:18
Half
13.11 mi12:10:261:39:357:365:20
7:49
-0:05
25K
15.53 mi12:29:551:59:047:4019:29
8:02
+0:13
30K
18.64 mi12:55:582:25:077:4726:03
8:23
+0:21
20M
20.00 mi13:07:452:36:547:5111:47
8:40
+0:17
21M
21.00 mi13:17:172:46:267:569:32
9:32
+0:52
35K
21.75 mi13:23:362:52:457:576:19
8:27
-1:05
23M
23.00 mi13:34:553:04:048:0011:19
9:02
+0:35
24M
24.00 mi13:43:503:12:598:028:55
8:55
-0:07
40K
24.85 mi13:51:483:20:578:057:58
9:19
+0:24
25.2M
25.20 mi13:55:133:24:228:073:25
9:54
+0:35
Finish
26.22 mi14:04:123:33:218:098:59
8:49
-1:05

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

7:23 /mi

Average Pace

8:09 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:04

56% of race

Time at Steady Pace

53:08

25% of race

Time at Slower Pace

41:09

19% of race

Average Pace: 8:08 /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 mi10:53:4722:567:2322:56
7:23
#8698
10K
6.21 mi11:16:5646:057:2523:09
7:27
#9321
15K
9.32 mi11:40:341:09:437:2923:38
7:36
#9869
20K
12.43 mi12:05:061:34:157:3524:32
7:54
#10567
Half
13.11 mi12:10:261:39:357:365:20
7:49
#10700
25K
15.53 mi12:29:551:59:047:4019:29
8:02
#11026
30K
18.64 mi12:55:582:25:077:4726:03
8:23
#11488
20M
20.00 mi13:07:452:36:547:5111:47
8:40
#11754
21M
21.00 mi13:17:172:46:267:569:32
9:32
#12063
35K
21.75 mi13:23:362:52:457:576:19
8:27
#12177
23M
23.00 mi13:34:553:04:048:0011:19
9:02
#12469
24M
24.00 mi13:43:503:12:598:028:55
8:55
#12697
40K
24.85 mi13:51:483:20:578:057:58
9:19
#12910
25.2M
25.20 mi13:55:133:24:228:073:25
9:54
#12984
Finish
26.22 mi14:04:123:33:218:098:59
8:49
#13150
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi86981279127911104(Top 42%)2415(Top 21%)2415(Top 200%)
10K6.21 mi3.10 mi9321-6231541-2621541-26210096(Top 38%)1870(Top 16%)1870(Top 155%)
15K9.32 mi3.11 mi9869-5481771-2301771-23011104(Top 42%)2415(Top 21%)2415(Top 200%)
20K12.43 mi3.11 mi10567-6982110-3392110-33912612(Top 47%)3329(Top 29%)3329(Top 276%)
Half13.11 mi0.68 mi10700-1332186-762186-7612946(Top 49%)3475(Top 30%)3475(Top 288%)
25K15.53 mi2.42 mi11026-3262370-1842370-18413048(Top 49%)3655(Top 32%)3655(Top 303%)
30K18.64 mi3.11 mi11488-4622682-3122682-31213593(Top 51%)4083(Top 36%)4083(Top 338%)
20M20.00 mi1.36 mi11754-2662856-1742856-17414691(Top 55%)4818(Top 42%)4818(Top 399%)
21M21.00 mi1.00 mi12063-3093044-1883044-18816120(Top 61%)5687(Top 50%)5687(Top 471%)
35K21.75 mi0.75 mi12177-1143131-873131-8714976(Top 56%)5081(Top 44%)5081(Top 421%)
23M23.00 mi1.25 mi12469-2923309-1783309-17816240(Top 61%)5867(Top 51%)5867(Top 486%)
24M24.00 mi1.00 mi12697-2283472-1633472-16316845(Top 63%)6260(Top 55%)6260(Top 519%)
40K24.85 mi0.85 mi12910-2133621-1493621-14917599(Top 66%)6729(Top 59%)6729(Top 557%)
25.2M25.20 mi0.35 mi12984-743675-543675-5417017(Top 64%)6409(Top 56%)6409(Top 531%)
Finish26.22 mi1.02 mi13150-1663787-1123787-11217112(Top 64%)6427(Top 56%)6427(Top 532%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11104

Females

2415

F50-54

2415

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10096

Females

1870

F50-54

1870

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11104

Females

2415

F50-54

2415

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

12612

Females

3329

F50-54

3329

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

12946

Females

3475

F50-54

3475

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13048

Females

3655

F50-54

3655

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

13593

Females

4083

F50-54

4083

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

14691

Females

4818

F50-54

4818

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

16120

Females

5687

F50-54

5687

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

14976

Females

5081

F50-54

5081

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

16240

Females

5867

F50-54

5867

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16845

Females

6260

F50-54

6260

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17599

Females

6729

F50-54

6729

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

17017

Females

6409

F50-54

6409

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

17112

Females

6427

F50-54

6427

Passing Analysis

Category:
Athletes Passed
482
Passed By
4933
Net Change
-4452
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8698
5K → 10K81704-623#8698#9321
10K → 15K46594-548#9321#9869
15K → 20K34731-698#9869#10567
20K → Half3136-133#10567#10700
Half → 25K62388-326#10700#11026
25K → 30K67529-462#11026#11488
30K → 20M38304-266#11488#11754
20M → 21M21330-309#11754#12063
21M → 35K19133-114#12063#12177
35K → 23M28320-292#12177#12469
23M → 24M25253-228#12469#12697
24M → 40K24237-213#12697#12910
40K → 25.2M1185-74#12910#12984
25.2M → Finish23189-166#12984#13150
TOTALS4824933-4452
📊

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