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BOSTON MARATHON 2023

Donna Grocki

Bib: 19088•F

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 47%
Masters (Masters Women)
#0 / 6539
Top 36%
Division (F60-64)
#0 / 527
Top 9%
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
8:14/mi
25:36
↑ 97↓ 3451.5%
10K· 6.21 mi
7:59/mi
50:24
↑ 79↓ 1380.4%
15K· 9.32 mi
7:59/mi
1:15:12
↑ 67↓ 78
20K· 12.43 mi
8:12/mi
1:40:40
↑ 106↓ 860.1%
Half· 13.11 mi
7:59/mi
1:46:07
↑ 19↓ 370.5%
25K· 15.53 mi
8:19/mi
2:06:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:53/mi
2:33:54
↑ 181↓ 1480.2%
20M
9:02/mi
2:46:10
↑ 64↓ 500.2%
21M
10:10/mi
2:56:20
↑ 106↓ 241.6%
35K· 21.75 mi
8:33/mi
3:02:44
↑ 17↓ 861.7%
23M
9:02/mi
3:14:02
↑ 23↓ 630.6%
24M
8:38/mi
3:22:40
↓ 821.3%
40K· 24.85 mi
9:09/mi
3:30:29
↓ 200.3%
25.2M
10:15/mi
3:34:01
↑ 13↓ 160.2%
Finish· 26.22 mi
9:24/mi
3:43:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:07
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time1:57:29
Pace8:58 /mi
📊Positive Split: 10.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:3925:368:1425:36
8:14
-
10K
6.21 mi11:43:2750:248:0724:48
7:59
-0:15
15K
9.32 mi12:08:151:15:128:0424:48
7:59
0:00
20K
12.43 mi12:33:431:40:408:0625:28
8:12
+0:13
Half
13.11 mi12:39:101:46:078:065:27
7:59
-0:13
25K
15.53 mi12:59:202:06:178:0820:10
8:19
+0:20
30K
18.64 mi13:26:572:33:548:1527:37
8:53
+0:34
20M
20.00 mi13:39:132:46:108:1812:16
9:02
+0:09
21M
21.00 mi13:49:232:56:208:2410:10
10:10
+1:08
35K
21.75 mi13:55:473:02:448:246:24
8:33
-1:37
23M
23.00 mi14:07:053:14:028:2611:18
9:02
+0:29
24M
24.00 mi14:15:433:22:408:278:38
8:38
-0:24
40K
24.85 mi14:23:323:30:298:287:49
9:09
+0:31
25.2M
25.20 mi14:27:043:34:018:303:32
10:15
+1:06
Finish
26.22 mi14:36:393:43:368:329:35
9:24
-0:51

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

7:59 /mi

Average Pace

8:32 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:07

47% of race

Time at Steady Pace

1:02:49

28% of race

Time at Slower Pace

54:40

24% of race

Average Pace: 8:32 /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 mi11:18:3925:368:1425:36
8:14
#15734
10K
6.21 mi11:43:2750:248:0724:48
7:59
#15203
15K
9.32 mi12:08:151:15:128:0424:48
7:59
#14889
20K
12.43 mi12:33:431:40:408:0625:28
8:12
#14869
Half
13.11 mi12:39:101:46:078:065:27
7:59
#14844
25K
15.53 mi12:59:202:06:178:0820:10
8:19
#14844
30K
18.64 mi13:26:572:33:548:1527:37
8:53
#15171
20M
20.00 mi13:39:132:46:108:1812:16
9:02
#15297
21M
21.00 mi13:49:232:56:208:2410:10
10:10
#15514
35K
21.75 mi13:55:473:02:448:246:24
8:33
#15510
23M
23.00 mi14:07:053:14:028:2611:18
9:02
#15541
24M
24.00 mi14:15:433:22:408:278:38
8:38
#15519
40K
24.85 mi14:23:323:30:298:287:49
9:09
#15575
25.2M
25.20 mi14:27:043:34:018:303:32
10:15
#15628
Finish
26.22 mi14:36:393:43:368:329:35
9:24
#15832
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi157345114511414259(Top 54%)4239(Top 37%)4239(Top 804%)
10K6.21 mi3.10 mi15203+5314773+3414773+34114700(Top 55%)4483(Top 39%)4483(Top 851%)
15K9.32 mi3.11 mi14889+3144593+1804593+18014259(Top 54%)4239(Top 37%)4239(Top 804%)
20K12.43 mi3.11 mi14869+204598-54598-514951(Top 56%)4686(Top 41%)4686(Top 889%)
Half13.11 mi0.68 mi14844+254589+94589+914389(Top 54%)4333(Top 38%)4333(Top 822%)
25K15.53 mi2.42 mi148444615-264615-2615081(Top 57%)4897(Top 43%)4897(Top 929%)
30K18.64 mi3.11 mi15171-3274867-2524867-25216594(Top 62%)5831(Top 51%)5831(Top 1106%)
20M20.00 mi1.36 mi15297-1264965-984965-9816691(Top 63%)5964(Top 52%)5964(Top 1132%)
21M21.00 mi1.00 mi15514-2175124-1595124-15918607(Top 70%)7110(Top 62%)7110(Top 1349%)
35K21.75 mi0.75 mi15510+45139-155139-1515617(Top 59%)5476(Top 48%)5476(Top 1039%)
23M23.00 mi1.25 mi15541-315192-535192-5316187(Top 61%)5843(Top 51%)5843(Top 1109%)
24M24.00 mi1.00 mi15519+225190+25190+215290(Top 57%)5402(Top 47%)5402(Top 1025%)
40K24.85 mi0.85 mi15575-565231-415231-4116839(Top 63%)6304(Top 55%)6304(Top 1196%)
25.2M25.20 mi0.35 mi15628-535267-365267-3618287(Top 69%)7096(Top 62%)7096(Top 1346%)
Finish26.22 mi1.02 mi15832-2045398-1315398-13119783(Top 74%)7878(Top 69%)7878(Top 1495%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14259

Females

4239

F60-64

4239

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

14700

Females

4483

F60-64

4483

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14259

Females

4239

F60-64

4239

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

14951

Females

4686

F60-64

4686

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

14389

Females

4333

F60-64

4333

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15081

Females

4897

F60-64

4897

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

16594

Females

5831

F60-64

5831

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16691

Females

5964

F60-64

5964

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

18607

Females

7110

F60-64

7110

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

15617

Females

5476

F60-64

5476

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

16187

Females

5843

F60-64

5843

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

15290

Females

5402

F60-64

5402

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16839

Females

6304

F60-64

6304

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18287

Females

7096

F60-64

7096

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

19783

Females

7878

F60-64

7878

Passing Analysis

Category:
Athletes Passed
1850
Passed By
1948
Net Change
-98
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15734
5K → 10K649118+531#15734#15203
10K → 15K37662+314#15203#14889
15K → 20K199179+20#14889#14869
20K → Half4621+25#14869#14844
Half → 25K1401400#14844#14844
25K → 30K83410-327#14844#15171
30K → 20M45171-126#15171#15297
20M → 21M40257-217#15297#15514
21M → 35K4945+4#15514#15510
35K → 23M77108-31#15510#15541
23M → 24M7250+22#15541#15519
24M → 40K4096-56#15519#15575
40K → 25.2M1568-53#15575#15628
25.2M → Finish19223-204#15628#15832
TOTALS18501948-98
📊

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