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BOSTON MARATHON 2023

Marcela Norton

Bib: 23551•F

MA

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
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
9:07/mi
28:21
↑ 97↓ 3451.5%
10K· 6.21 mi
9:05/mi
56:35
↑ 79↓ 1380.4%
15K· 9.32 mi
9:20/mi
1:25:34
↑ 67↓ 78
20K· 12.43 mi
9:42/mi
1:55:42
↑ 106↓ 860.1%
Half· 13.11 mi
9:45/mi
2:02:21
↑ 19↓ 370.5%
25K· 15.53 mi
10:09/mi
2:26:57
↑ 66↓ 880.2%
30K· 18.64 mi
11:57/mi
3:04:04
↑ 181↓ 1480.2%
20M
11:21/mi
3:19:30
↑ 64↓ 500.2%
21M
13:53/mi
3:33:23
↑ 106↓ 241.6%
35K· 21.75 mi
10:51/mi
3:41:30
↑ 17↓ 861.7%
23M
10:55/mi
3:55:10
↑ 23↓ 630.6%
24M
10:31/mi
4:05:41
↓ 821.3%
40K· 24.85 mi
10:19/mi
4:14:30
↓ 200.3%
25.2M
11:39/mi
4:18:31
↑ 13↓ 160.2%
Finish· 26.22 mi
10:21/mi
4:29:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:21
Pace9:20 /mi
2nd Half
Distance13.11 mi
Time2:26:43
Pace11:12 /mi
📊Positive Split: 19.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:3328:219:0728:21
9:07
-
10K
6.21 mi11:51:4756:359:0628:14
9:05
-0:02
15K
9.32 mi12:20:461:25:349:1128:59
9:20
+0:15
20K
12.43 mi12:50:541:55:429:1930:08
9:42
+0:22
Half
13.11 mi12:57:332:02:219:206:39
9:45
+0:03
25K
15.53 mi13:22:092:26:579:2824:36
10:09
+0:24
30K
18.64 mi13:59:163:04:049:5237:07
11:57
+1:48
20M
20.00 mi14:14:423:19:309:5815:26
11:21
-0:36
21M
21.00 mi14:28:353:33:2310:1013:53
13:53
+2:32
35K
21.75 mi14:36:423:41:3010:118:07
10:51
-3:02
23M
23.00 mi14:50:223:55:1010:1313:40
10:55
+0:04
24M
24.00 mi15:00:534:05:4110:1410:31
10:31
-0:24
40K
24.85 mi15:09:424:14:3010:148:49
10:19
-0:12
25.2M
25.20 mi15:13:434:18:3110:164:01
11:39
+1:20
Finish
26.22 mi15:24:164:29:0410:1610:33
10:21
-1:18

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

9:05 /mi

Average Pace

10:16 /mi

Slowest Pace

13:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:42

43% of race

Time at Steady Pace

1:22:55

31% of race

Time at Slower Pace

1:10:27

26% of race

Average Pace: 10:16 /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 mi11:23:3328:219:0728:21
9:07
#20964
10K
6.21 mi11:51:4756:359:0628:14
9:05
#21091
15K
9.32 mi12:20:461:25:349:1128:59
9:20
#21296
20K
12.43 mi12:50:541:55:429:1930:08
9:42
#21538
Half
13.11 mi12:57:332:02:219:206:39
9:45
#21615
25K
15.53 mi13:22:092:26:579:2824:36
10:09
#21765
30K
18.64 mi13:59:163:04:049:5237:07
11:57
#22503
20M
20.00 mi14:14:423:19:309:5815:26
11:21
#22570
21M
21.00 mi14:28:353:33:2310:1013:53
13:53
#22781
35K
21.75 mi14:36:423:41:3010:118:07
10:51
#22805
23M
23.00 mi14:50:223:55:1010:1313:40
10:55
#22762
24M
24.00 mi15:00:534:05:4110:1410:31
10:31
#22723
40K
24.85 mi15:09:424:14:3010:148:49
10:19
#22661
25.2M
25.20 mi15:13:434:18:3110:164:01
11:39
#22654
Finish
26.22 mi15:24:164:29:0410:1610:33
10:21
#22659
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi209648353835321738(Top 82%)8641(Top 76%)8641(Top 1060%)
10K6.21 mi3.10 mi21091-1278365-128365-1221228(Top 80%)8404(Top 74%)8404(Top 1031%)
15K9.32 mi3.11 mi21296-2058439-748439-7421738(Top 82%)8641(Top 76%)8641(Top 1060%)
20K12.43 mi3.11 mi21538-2428576-1378576-13722167(Top 83%)8893(Top 78%)8893(Top 1091%)
Half13.11 mi0.68 mi21615-778617-418617-4122772(Top 86%)9227(Top 81%)9227(Top 1132%)
25K15.53 mi2.42 mi21765-1508691-748691-7422517(Top 85%)9125(Top 80%)9125(Top 1120%)
30K18.64 mi3.11 mi22503-7389126-4359126-43524430(Top 92%)10238(Top 90%)10238(Top 1256%)
20M20.00 mi1.36 mi22570-679175-499175-4923282(Top 87%)9667(Top 85%)9667(Top 1186%)
21M21.00 mi1.00 mi22781-2119294-1199294-11924933(Top 94%)10574(Top 93%)10574(Top 1297%)
35K21.75 mi0.75 mi22805-249311-179311-1723025(Top 86%)9602(Top 84%)9602(Top 1178%)
23M23.00 mi1.25 mi22762+439300+119300+1122190(Top 83%)9159(Top 80%)9159(Top 1124%)
24M24.00 mi1.00 mi22723+399291+99291+922078(Top 83%)9140(Top 80%)9140(Top 1121%)
40K24.85 mi0.85 mi22661+629260+319260+3120793(Top 78%)8490(Top 74%)8490(Top 1042%)
25.2M25.20 mi0.35 mi22654+79262-29262-221891(Top 82%)9075(Top 79%)9075(Top 1113%)
Finish26.22 mi1.02 mi22659-59270-89270-822702(Top 85%)9504(Top 83%)9504(Top 1166%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

21738

Females

8641

F55-59

8641

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

21228

Females

8404

F55-59

8404

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

21738

Females

8641

F55-59

8641

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

22167

Females

8893

F55-59

8893

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

22772

Females

9227

F55-59

9227

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

22517

Females

9125

F55-59

9125

25K→30K

15.5 - 18.6 mi

Top 92%
×9story building
+181ft-148ft

Overall

24430

Females

10238

F55-59

10238

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

23282

Females

9667

F55-59

9667

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

24933

Females

10574

F55-59

10574

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

23025

Females

9602

F55-59

9602

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

22190

Females

9159

F55-59

9159

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

22078

Females

9140

F55-59

9140

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20793

Females

8490

F55-59

8490

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21891

Females

9075

F55-59

9075

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

22702

Females

9504

F55-59

9504

Passing Analysis

Category:
Athletes Passed
778
Passed By
2473
Net Change
-1695
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20964
5K → 10K231358-127#20964#21091
10K → 15K84289-205#21091#21296
15K → 20K62304-242#21296#21538
20K → Half986-77#21538#21615
Half → 25K58208-150#21615#21765
25K → 30K20758-738#21765#22503
30K → 20M37104-67#22503#22570
20M → 21M5216-211#22570#22781
21M → 35K2246-24#22781#22805
35K → 23M6926+43#22805#22762
23M → 24M5718+39#22762#22723
24M → 40K675+62#22723#22661
40K → 25.2M1912+7#22661#22654
25.2M → Finish3843-5#22654#22659
TOTALS7782473-1695
📊

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