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BOSTON MARATHON 2023

Mary Anderson

Bib: 23673•F

SD

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Top 38%
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
9:05/mi
28:14
↑ 97↓ 3451.5%
10K· 6.21 mi
8:59/mi
56:08
↑ 79↓ 1380.4%
15K· 9.32 mi
8:58/mi
1:24:00
↑ 67↓ 78
20K· 12.43 mi
8:57/mi
1:51:49
↑ 106↓ 860.1%
Half· 13.11 mi
8:51/mi
1:57:51
↑ 19↓ 370.5%
25K· 15.53 mi
9:00/mi
2:19:40
↑ 66↓ 880.2%
30K· 18.64 mi
9:12/mi
2:48:14
↑ 181↓ 1480.2%
20M
9:13/mi
3:00:45
↑ 64↓ 500.2%
21M
9:32/mi
3:10:17
↑ 106↓ 241.6%
35K· 21.75 mi
8:47/mi
3:16:51
↑ 17↓ 861.7%
23M
8:54/mi
3:27:59
↑ 23↓ 630.6%
24M
9:14/mi
3:37:13
↓ 821.3%
40K· 24.85 mi
9:03/mi
3:44:57
↓ 200.3%
25.2M
9:40/mi
3:48:17
↑ 13↓ 160.2%
Finish· 26.22 mi
8:52/mi
3:57:19
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:51
Pace8:59 /mi
2nd Half
Distance13.11 mi
Time1:59:28
Pace9:07 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:4928:149:0528:14
9:05
-
10K
6.21 mi11:51:4356:089:0227:54
8:59
-0:06
15K
9.32 mi12:19:351:24:009:0127:52
8:58
-0:01
20K
12.43 mi12:47:241:51:499:0027:49
8:57
-0:01
Half
13.11 mi12:53:261:57:518:596:02
8:51
-0:06
25K
15.53 mi13:15:152:19:408:5921:49
9:00
+0:09
30K
18.64 mi13:43:492:48:149:0128:34
9:12
+0:12
20M
20.00 mi13:56:203:00:459:0212:31
9:13
+0:01
21M
21.00 mi14:05:523:10:179:049:32
9:32
+0:19
35K
21.75 mi14:12:263:16:519:036:34
8:47
-0:45
23M
23.00 mi14:23:343:27:599:0311:08
8:54
+0:07
24M
24.00 mi14:32:483:37:139:039:14
9:14
+0:20
40K
24.85 mi14:40:323:44:579:037:44
9:03
-0:11
25.2M
25.20 mi14:43:523:48:179:043:20
9:40
+0:37
Finish
26.22 mi14:52:543:57:199:039:02
8:52
-0:48

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

8:47 /mi

Average Pace

9:03 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:53:59

99% of race

Time at Steady Pace

3:20

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:03 /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 mi11:23:4928:149:0528:14
9:05
#20820
10K
6.21 mi11:51:4356:089:0227:54
8:59
#20786
15K
9.32 mi12:19:351:24:009:0127:52
8:58
#20625
20K
12.43 mi12:47:241:51:499:0027:49
8:57
#20353
Half
13.11 mi12:53:261:57:518:596:02
8:51
#20315
25K
15.53 mi13:15:152:19:408:5921:49
9:00
#20073
30K
18.64 mi13:43:492:48:149:0128:34
9:12
#19709
20M
20.00 mi13:56:203:00:459:0212:31
9:13
#19538
21M
21.00 mi14:05:523:10:179:049:32
9:32
#19332
35K
21.75 mi14:12:263:16:519:036:34
8:47
#19245
23M
23.00 mi14:23:343:27:599:0311:08
8:54
#19049
24M
24.00 mi14:32:483:37:139:039:14
9:14
#19010
40K
24.85 mi14:40:323:44:579:037:44
9:03
#18913
25.2M
25.20 mi14:43:523:48:179:043:20
9:40
#18859
Finish
26.22 mi14:52:543:57:199:039:02
8:52
#18826
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi208208278827820364(Top 76%)7880(Top 69%)7880(Top 967%)
10K6.21 mi3.10 mi20786+348191+878191+8720794(Top 78%)8148(Top 71%)8148(Top 1000%)
15K9.32 mi3.11 mi20625+1618084+1078084+10720364(Top 76%)7880(Top 69%)7880(Top 967%)
20K12.43 mi3.11 mi20353+2727918+1667918+16619488(Top 73%)7374(Top 65%)7374(Top 905%)
Half13.11 mi0.68 mi20315+387896+227896+2219741(Top 74%)7512(Top 66%)7512(Top 922%)
25K15.53 mi2.42 mi20073+2427747+1497747+14918950(Top 71%)7102(Top 62%)7102(Top 871%)
30K18.64 mi3.11 mi19709+3647556+1917556+19118157(Top 68%)6742(Top 59%)6742(Top 827%)
20M20.00 mi1.36 mi19538+1717474+827474+8217628(Top 66%)6540(Top 57%)6540(Top 802%)
21M21.00 mi1.00 mi19332+2067365+1097365+10916158(Top 61%)5725(Top 50%)5725(Top 702%)
35K21.75 mi0.75 mi19245+877314+517314+5116872(Top 63%)6216(Top 54%)6216(Top 763%)
23M23.00 mi1.25 mi19049+1967213+1017213+10115534(Top 58%)5479(Top 48%)5479(Top 672%)
24M24.00 mi1.00 mi19010+397203+107203+1018203(Top 68%)7010(Top 61%)7010(Top 860%)
40K24.85 mi0.85 mi18913+977150+537150+5316433(Top 62%)6106(Top 53%)6106(Top 749%)
25.2M25.20 mi0.35 mi18859+547129+217129+2116048(Top 60%)5912(Top 52%)5912(Top 725%)
Finish26.22 mi1.02 mi18826+337115+147115+1417363(Top 65%)6571(Top 58%)6571(Top 806%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

20364

Females

7880

F55-59

7880

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

20794

Females

8148

F55-59

8148

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

20364

Females

7880

F55-59

7880

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

19488

Females

7374

F55-59

7374

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

19741

Females

7512

F55-59

7512

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

18950

Females

7102

F55-59

7102

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

18157

Females

6742

F55-59

6742

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

17628

Females

6540

F55-59

6540

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

16158

Females

5725

F55-59

5725

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

16872

Females

6216

F55-59

6216

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

15534

Females

5479

F55-59

5479

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

18203

Females

7010

F55-59

7010

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16433

Females

6106

F55-59

6106

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16048

Females

5912

F55-59

5912

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

17363

Females

6571

F55-59

6571

Passing Analysis

Category:
Athletes Passed
2609
Passed By
615
Net Change
+1994
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20820
5K → 10K320286+34#20820#20786
10K → 15K271110+161#20786#20625
15K → 20K31745+272#20625#20353
20K → Half5214+38#20353#20315
Half → 25K27028+242#20315#20073
25K → 30K38521+364#20073#19709
30K → 20M18110+171#19709#19538
20M → 21M2126+206#19538#19332
21M → 35K903+87#19332#19245
35K → 23M20610+196#19245#19049
23M → 24M7637+39#19049#19010
24M → 40K1058+97#19010#18913
40K → 25.2M617+54#18913#18859
25.2M → Finish6330+33#18859#18826
TOTALS2609615+1994
📊

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