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BOSTON MARATHON 2023

Allison Norton

Bib: 26107•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
9:53/mi
30:41
↑ 97↓ 3451.5%
10K· 6.21 mi
9:17/mi
59:32
↑ 79↓ 1380.4%
15K· 9.32 mi
9:36/mi
1:29:20
↑ 67↓ 78
20K· 12.43 mi
10:10/mi
2:00:54
↑ 106↓ 860.1%
Half· 13.11 mi
10:19/mi
2:07:56
↑ 19↓ 370.5%
25K· 15.53 mi
11:05/mi
2:34:48
↑ 66↓ 880.2%
30K· 18.64 mi
12:22/mi
3:13:14
↑ 181↓ 1480.2%
20M
12:39/mi
3:30:25
↑ 64↓ 500.2%
21M
14:22/mi
3:44:47
↑ 106↓ 241.6%
35K· 21.75 mi
10:55/mi
3:52:57
↑ 17↓ 861.7%
23M
11:07/mi
4:06:52
↑ 23↓ 630.6%
24M
10:57/mi
4:17:49
↓ 821.3%
40K· 24.85 mi
11:08/mi
4:27:20
↓ 200.3%
25.2M
12:31/mi
4:31:39
↑ 13↓ 160.2%
Finish· 26.22 mi
11:18/mi
4:43:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:56
Pace9:46 /mi
2nd Half
Distance13.11 mi
Time2:35:14
Pace11:51 /mi
📊Positive Split: 21.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:0230:419:5330:41
9:53
-
10K
6.21 mi12:16:5359:329:3528:51
9:17
-0:36
15K
9.32 mi12:46:411:29:209:3529:48
9:36
+0:19
20K
12.43 mi13:18:152:00:549:4431:34
10:10
+0:34
Half
13.11 mi13:25:172:07:569:467:02
10:19
+0:09
25K
15.53 mi13:52:092:34:489:5826:52
11:05
+0:46
30K
18.64 mi14:30:353:13:1410:2238:26
12:22
+1:17
20M
20.00 mi14:47:463:30:2510:3117:11
12:39
+0:17
21M
21.00 mi15:02:083:44:4710:4214:22
14:22
+1:43
35K
21.75 mi15:10:183:52:5710:438:10
10:55
-3:27
23M
23.00 mi15:24:134:06:5210:4413:55
11:07
+0:12
24M
24.00 mi15:35:104:17:4910:4510:57
10:57
-0:10
40K
24.85 mi15:44:414:27:2010:459:31
11:08
+0:11
25.2M
25.20 mi15:49:004:31:3910:474:19
12:31
+1:23
Finish
26.22 mi16:00:314:43:1010:4811:31
11:18
-1:13

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

9:17 /mi

Average Pace

10:48 /mi

Slowest Pace

14:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:56

45% of race

Time at Steady Pace

1:20:56

29% of race

Time at Slower Pace

1:14:18

26% of race

Average Pace: 10:48 /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 mi11:48:0230:419:5330:41
9:53
#23148
10K
6.21 mi12:16:5359:329:3528:51
9:17
#22565
15K
9.32 mi12:46:411:29:209:3529:48
9:36
#22551
20K
12.43 mi13:18:152:00:549:4431:34
10:10
#22744
Half
13.11 mi13:25:172:07:569:467:02
10:19
#22820
25K
15.53 mi13:52:092:34:489:5826:52
11:05
#23105
30K
18.64 mi14:30:353:13:1410:2238:26
12:22
#23557
20M
20.00 mi14:47:463:30:2510:3117:11
12:39
#23691
21M
21.00 mi15:02:083:44:4710:4214:22
14:22
#23869
35K
21.75 mi15:10:183:52:5710:438:10
10:55
#23850
23M
23.00 mi15:24:134:06:5210:4413:55
11:07
#23791
24M
24.00 mi15:35:104:17:4910:4510:57
10:57
#23764
40K
24.85 mi15:44:414:27:2010:459:31
11:08
#23723
25.2M
25.20 mi15:49:004:31:3910:474:19
12:31
#23726
Finish
26.22 mi16:00:314:43:1010:4811:31
11:18
#23760
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi231489472947222508(Top 85%)9073(Top 79%)9073(Top 186%)
10K6.21 mi3.10 mi22565+5839131+3419131+34121898(Top 82%)8768(Top 77%)8768(Top 180%)
15K9.32 mi3.11 mi22551+149118+139118+1322508(Top 85%)9073(Top 79%)9073(Top 186%)
20K12.43 mi3.11 mi22744-1939211-939211-9323234(Top 87%)9477(Top 83%)9477(Top 194%)
Half13.11 mi0.68 mi22820-769251-409251-4023887(Top 90%)9859(Top 86%)9859(Top 202%)
25K15.53 mi2.42 mi23105-2859415-1649415-16424099(Top 91%)10008(Top 88%)10008(Top 205%)
30K18.64 mi3.11 mi23557-4529674-2599674-25924880(Top 93%)10502(Top 92%)10502(Top 215%)
20M20.00 mi1.36 mi23691-1349763-899763-8924880(Top 93%)10539(Top 92%)10539(Top 216%)
21M21.00 mi1.00 mi23869-1789866-1039866-10325341(Top 95%)10778(Top 94%)10778(Top 221%)
35K21.75 mi0.75 mi23850+199862+49862+423177(Top 87%)9691(Top 85%)9691(Top 198%)
23M23.00 mi1.25 mi23791+599837+259837+2522580(Top 85%)9369(Top 82%)9369(Top 192%)
24M24.00 mi1.00 mi23764+279829+89829+822976(Top 86%)9626(Top 84%)9626(Top 197%)
40K24.85 mi0.85 mi23723+419813+169813+1622632(Top 85%)9472(Top 83%)9472(Top 194%)
25.2M25.20 mi0.35 mi23726-39822-99822-923354(Top 88%)9866(Top 86%)9866(Top 202%)
Finish26.22 mi1.02 mi23760-349846-249846-2424437(Top 92%)10377(Top 91%)10377(Top 212%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

22508

Females

9073

F18-39

9073

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

21898

Females

8768

F18-39

8768

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

22508

Females

9073

F18-39

9073

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

23234

Females

9477

F18-39

9477

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

23887

Females

9859

F18-39

9859

Half→25K

13.1 - 15.5 mi

Top 91%
×4story building
+66ft-88ft

Overall

24099

Females

10008

F18-39

10008

25K→30K

15.5 - 18.6 mi

Top 93%
×9story building
+181ft-148ft

Overall

24880

Females

10502

F18-39

10502

30K→20M

18.6 - 20.0 mi

Top 93%
×5story building
+64ft-50ft

Overall

24880

Females

10539

F18-39

10539

20M→21M

20.0 - 21.0 mi

Top 95%
×8story building
+106ft-24ft

Overall

25341

Females

10778

F18-39

10778

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

23177

Females

9691

F18-39

9691

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

22580

Females

9369

F18-39

9369

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

22976

Females

9626

F18-39

9626

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

22632

Females

9472

F18-39

9472

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

23354

Females

9866

F18-39

9866

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2story building
+22ft-21ft

Overall

24437

Females

10377

F18-39

10377

Passing Analysis

Category:
Athletes Passed
1167
Passed By
1779
Net Change
-612
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23148
5K → 10K62946+583#23148#22565
10K → 15K154140+14#22565#22551
15K → 20K71264-193#22551#22744
20K → Half1086-76#22744#22820
Half → 25K29314-285#22820#23105
25K → 30K18470-452#23105#23557
30K → 20M22156-134#23557#23691
20M → 21M8186-178#23691#23869
21M → 35K2910+19#23869#23850
35K → 23M7920+59#23850#23791
23M → 24M3811+27#23791#23764
24M → 40K498+41#23764#23723
40K → 25.2M1518-3#23723#23726
25.2M → Finish1650-34#23726#23760
TOTALS11671779-612
📊

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