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BOSTON MARATHON 2023

Margaret Ross

Bib: 14924•X

WI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 39%
Gender (Other)
#0 / 23
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
7:40/mi
23:50
↑ 97↓ 3451.5%
10K· 6.21 mi
7:27/mi
47:00
↑ 79↓ 1380.4%
15K· 9.32 mi
7:23/mi
1:09:57
↑ 67↓ 78
20K· 12.43 mi
7:28/mi
1:33:09
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:38:10
↑ 19↓ 370.5%
25K· 15.53 mi
7:36/mi
1:56:36
↑ 66↓ 880.2%
30K· 18.64 mi
8:09/mi
2:21:56
↑ 181↓ 1480.2%
20M
8:04/mi
2:32:54
↑ 64↓ 500.2%
21M
8:26/mi
2:41:20
↑ 106↓ 241.6%
35K· 21.75 mi
7:53/mi
2:47:14
↑ 17↓ 861.7%
23M
8:11/mi
2:57:29
↑ 23↓ 630.6%
24M
8:10/mi
3:05:39
↓ 821.3%
40K· 24.85 mi
8:26/mi
3:12:52
↓ 200.3%
25.2M
8:42/mi
3:15:52
↑ 13↓ 160.2%
Finish· 26.22 mi
7:38/mi
3:23:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:10
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:45:29
Pace8:03 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4423:507:4023:50
7:40
-
10K
6.21 mi11:15:5447:007:3423:10
7:27
-0:13
15K
9.32 mi11:38:511:09:577:3022:57
7:23
-0:04
20K
12.43 mi12:02:031:33:097:3023:12
7:28
+0:05
Half
13.11 mi12:07:041:38:107:295:01
7:21
-0:07
25K
15.53 mi12:25:301:56:367:3018:26
7:36
+0:15
30K
18.64 mi12:50:502:21:567:3725:20
8:09
+0:33
20M
20.00 mi13:01:482:32:547:3910:58
8:04
-0:05
21M
21.00 mi13:10:142:41:207:418:26
8:26
+0:22
35K
21.75 mi13:16:082:47:147:415:54
7:53
-0:33
23M
23.00 mi13:26:232:57:297:4310:15
8:11
+0:18
24M
24.00 mi13:34:333:05:397:448:10
8:10
-0:01
40K
24.85 mi13:41:463:12:527:467:13
8:26
+0:16
25.2M
25.20 mi13:44:463:15:527:463:00
8:42
+0:16
Finish
26.22 mi13:52:333:23:397:467:47
7:38
-1:04

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

7:21 /mi

Average Pace

7:46 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:15

69% of race

Time at Steady Pace

59:24

29% of race

Time at Slower Pace

3:00

1% of race

Average Pace: 7:46 /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 mi10:52:4423:507:4023:50
7:40
#11220
10K
6.21 mi11:15:5447:007:3423:10
7:27
#10598
15K
9.32 mi11:38:511:09:577:3022:57
7:23
#10112
20K
12.43 mi12:02:031:33:097:3023:12
7:28
#9791
Half
13.11 mi12:07:041:38:107:295:01
7:21
#9754
25K
15.53 mi12:25:301:56:367:3018:26
7:36
#9707
30K
18.64 mi12:50:502:21:567:3725:20
8:09
#10087
20M
20.00 mi13:01:482:32:547:3910:58
8:04
#10121
21M
21.00 mi13:10:142:41:207:418:26
8:26
#10073
35K
21.75 mi13:16:082:47:147:415:54
7:53
#10113
23M
23.00 mi13:26:232:57:297:4310:15
8:11
#10153
24M
24.00 mi13:34:333:05:397:448:10
8:10
#10231
40K
24.85 mi13:41:463:12:527:467:13
8:26
#10318
25.2M
25.20 mi13:44:463:15:527:463:00
8:42
#10309
Finish
26.22 mi13:52:333:23:397:467:47
7:38
#10256
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallXAge DivSeg. OverallSeg. XSeg. Age Div
5K3.11 mi3.11 mi1122015159244(Top 35%)14(Top 61%)14
10K6.21 mi3.10 mi10598+62214+114+110144(Top 38%)14(Top 61%)14
15K9.32 mi3.11 mi10112+48614149244(Top 35%)14(Top 61%)14
20K12.43 mi3.11 mi9791+32114149075(Top 34%)14(Top 61%)14
Half13.11 mi0.68 mi9754+3714149126(Top 34%)14(Top 61%)14
25K15.53 mi2.42 mi9707+4714149589(Top 36%)14(Top 61%)14
30K18.64 mi3.11 mi10087-380141412046(Top 45%)16(Top 70%)16
20M20.00 mi1.36 mi10121-34141410840(Top 41%)15(Top 65%)15
21M21.00 mi1.00 mi10073+48141410122(Top 38%)15(Top 65%)15
35K21.75 mi0.75 mi10113-40141411383(Top 43%)15(Top 65%)15
23M23.00 mi1.25 mi10153-40141411149(Top 42%)15(Top 65%)15
24M24.00 mi1.00 mi10231-78141412439(Top 47%)16(Top 70%)16
40K24.85 mi0.85 mi10318-8716-216-213030(Top 49%)16(Top 70%)16
25.2M25.20 mi0.35 mi10309+9161610897(Top 41%)14(Top 61%)14
Finish26.22 mi1.02 mi10256+5315+115+19607(Top 36%)12(Top 52%)12

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9244

X

14

Age Div

14

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10144

X

14

Age Div

14

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9244

X

14

Age Div

14

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9075

X

14

Age Div

14

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

9126

X

14

Age Div

14

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9589

X

14

Age Div

14

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

12046

X

16

Age Div

16

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

10840

X

15

Age Div

15

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10122

X

15

Age Div

15

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

11383

X

15

Age Div

15

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11149

X

15

Age Div

15

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12439

X

16

Age Div

16

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13030

X

16

Age Div

16

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10897

X

14

Age Div

14

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

9607

X

12

Age Div

12

Passing Analysis

Category:
Athletes Passed
2369*
Passed By
1405
Net Change
+964
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11220
5K → 10K709*87+622#11220#10598
10K → 15K52236+486#10598#10112
15K → 20K366*45+321#10112#9791
20K → Half5316+37#9791#9754
Half → 25K13689+47#9754#9707
25K → 30K65445-380#9707#10087
30K → 20M74108-34#10087#10121
20M → 21M10961+48#10121#10073
21M → 35K3474-40#10073#10113
35K → 23M75115-40#10113#10153
23M → 24M41119-78#10153#10231
24M → 40K46133-87#10231#10318
40K → 25.2M4132+9#10318#10309
25.2M → Finish9845+53#10309#10256
TOTALS2369*1405+964

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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