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BOSTON MARATHON 2023

Mary Kay Robinson

Bib: 15492•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 47%
Gender (Female)
#0 / 11423
Top 30%
Masters (Masters Women)
#0 / 6539
Top 16%
Division (F40-44)
#0 / 1878
Top 31%
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
8:03/mi
25:00
↑ 97↓ 3451.5%
10K· 6.21 mi
7:57/mi
49:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:55/mi
1:14:19
↑ 67↓ 78
20K· 12.43 mi
7:58/mi
1:39:04
↑ 106↓ 860.1%
Half· 13.11 mi
7:49/mi
1:44:24
↑ 19↓ 370.5%
25K· 15.53 mi
7:58/mi
2:03:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:00/mi
2:28:33
↑ 181↓ 1480.2%
20M
7:58/mi
2:39:23
↑ 64↓ 500.2%
21M
9:46/mi
2:49:09
↑ 106↓ 241.6%
35K· 21.75 mi
7:36/mi
2:54:50
↑ 17↓ 861.7%
23M
8:00/mi
3:04:51
↑ 23↓ 630.6%
24M
7:55/mi
3:12:46
↓ 821.3%
40K· 24.85 mi
8:03/mi
3:19:39
↓ 200.3%
25.2M
8:36/mi
3:22:37
↑ 13↓ 160.2%
Finish· 26.22 mi
8:00/mi
3:30:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:24
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:46:22
Pace8:07 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4325:008:0325:00
8:03
-
10K
6.21 mi11:16:2549:428:0024:42
7:57
-0:06
15K
9.32 mi11:41:021:14:197:5824:37
7:55
-0:02
20K
12.43 mi12:05:471:39:047:5824:45
7:58
+0:03
Half
13.11 mi12:11:071:44:247:585:20
7:49
-0:09
25K
15.53 mi12:30:252:03:427:5819:18
7:58
+0:09
30K
18.64 mi12:55:162:28:337:5824:51
8:00
+0:02
20M
20.00 mi13:06:062:39:237:5810:50
7:58
-0:02
21M
21.00 mi13:15:522:49:098:039:46
9:46
+1:48
35K
21.75 mi13:21:332:54:508:025:41
7:36
-2:10
23M
23.00 mi13:31:343:04:518:0210:01
8:00
+0:24
24M
24.00 mi13:39:293:12:468:027:55
7:55
-0:05
40K
24.85 mi13:46:223:19:398:026:53
8:03
+0:08
25.2M
25.20 mi13:49:203:22:378:022:58
8:36
+0:33
Finish
26.22 mi13:57:293:30:468:038:09
8:00
-0:36

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

7:36 /mi

Average Pace

8:03 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:41

3% of race

Time at Steady Pace

3:12:21

91% of race

Time at Slower Pace

12:44

6% of race

Average Pace: 8:02 /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 mi10:51:4325:008:0325:00
8:03
#14343
10K
6.21 mi11:16:2549:428:0024:42
7:57
#14378
15K
9.32 mi11:41:021:14:197:5824:37
7:55
#14165
20K
12.43 mi12:05:471:39:047:5824:45
7:58
#13873
Half
13.11 mi12:11:071:44:247:585:20
7:49
#13814
25K
15.53 mi12:30:252:03:427:5819:18
7:58
#13583
30K
18.64 mi12:55:162:28:337:5824:51
8:00
#13055
20M
20.00 mi13:06:062:39:237:5810:50
7:58
#12789
21M
21.00 mi13:15:522:49:098:039:46
9:46
#13092
35K
21.75 mi13:21:332:54:508:025:41
7:36
#12941
23M
23.00 mi13:31:343:04:518:0210:01
8:00
#12726
24M
24.00 mi13:39:293:12:468:027:55
7:55
#12628
40K
24.85 mi13:46:223:19:398:026:53
8:03
#12543
25.2M
25.20 mi13:49:203:22:378:022:58
8:36
#12496
Finish
26.22 mi13:57:293:30:468:038:09
8:00
#12461
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi143434230423013771(Top 52%)3944(Top 35%)3944(Top 210%)
10K6.21 mi3.10 mi14378-354269-394269-3914411(Top 54%)4306(Top 38%)4306(Top 229%)
15K9.32 mi3.11 mi14165+2134158+1114158+11113771(Top 52%)3944(Top 35%)3944(Top 210%)
20K12.43 mi3.11 mi13873+2924008+1504008+15013158(Top 49%)3628(Top 32%)3628(Top 193%)
Half13.11 mi0.68 mi13814+593971+373971+3712918(Top 49%)3447(Top 30%)3447(Top 184%)
25K15.53 mi2.42 mi13583+2313852+1193852+11912416(Top 47%)3316(Top 29%)3316(Top 177%)
30K18.64 mi3.11 mi13055+5283583+2693583+26910925(Top 41%)2602(Top 23%)2602(Top 139%)
20M20.00 mi1.36 mi12789+2663442+1413442+14110113(Top 38%)2295(Top 20%)2295(Top 122%)
21M21.00 mi1.00 mi13092-3033634-1923634-19217117(Top 64%)6252(Top 55%)6252(Top 333%)
35K21.75 mi0.75 mi12941+1513575+593575+599330(Top 35%)2083(Top 18%)2083(Top 111%)
23M23.00 mi1.25 mi12726+2153469+1063469+1069786(Top 37%)2413(Top 21%)2413(Top 128%)
24M24.00 mi1.00 mi12628+983430+393430+3910693(Top 40%)2937(Top 26%)2937(Top 156%)
40K24.85 mi0.85 mi12543+853400+303400+3010414(Top 39%)2856(Top 25%)2856(Top 152%)
25.2M25.20 mi0.35 mi12496+473383+173383+1710251(Top 39%)2831(Top 25%)2831(Top 151%)
Finish26.22 mi1.02 mi12461+353384-13384-112144(Top 46%)3773(Top 33%)3773(Top 201%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

13771

Females

3944

F40-44

3944

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

14411

Females

4306

F40-44

4306

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

13771

Females

3944

F40-44

3944

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13158

Females

3628

F40-44

3628

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

12918

Females

3447

F40-44

3447

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

12416

Females

3316

F40-44

3316

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10925

Females

2602

F40-44

2602

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10113

Females

2295

F40-44

2295

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

17117

Females

6252

F40-44

6252

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

9330

Females

2083

F40-44

2083

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

9786

Females

2413

F40-44

2413

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

10693

Females

2937

F40-44

2937

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10414

Females

2856

F40-44

2856

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10251

Females

2831

F40-44

2831

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12144

Females

3773

F40-44

3773

Passing Analysis

Category:
Athletes Passed
2845
Passed By
963
Net Change
+1882
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14343
5K → 10K266301-35#14343#14378
10K → 15K30693+213#14378#14165
15K → 20K34250+292#14165#13873
20K → Half6910+59#13873#13814
Half → 25K26635+231#13814#13583
25K → 30K54517+528#13583#13055
30K → 20M2726+266#13055#12789
20M → 21M30333-303#12789#13092
21M → 35K1543+151#13092#12941
35K → 23M22813+215#12941#12726
23M → 24M12325+98#12726#12628
24M → 40K10116+85#12628#12543
40K → 25.2M5811+47#12543#12496
25.2M → Finish8550+35#12496#12461
TOTALS2845963+1882
📊

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