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BOSTON MARATHON 2023

Rebecca Moss

Bib: 16926•F

AL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 41%
Gender (Female)
#0 / 11423
Top 22%
Division (F18-39)
#0 / 4884
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
7:52/mi
24:27
↑ 97↓ 3451.5%
10K· 6.21 mi
7:56/mi
49:06
↑ 79↓ 1380.4%
15K· 9.32 mi
7:57/mi
1:13:47
↑ 67↓ 78
20K· 12.43 mi
7:52/mi
1:38:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:50/mi
1:43:34
↑ 19↓ 370.5%
25K· 15.53 mi
7:50/mi
2:02:34
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:27:05
↑ 181↓ 1480.2%
20M
7:55/mi
2:37:51
↑ 64↓ 500.2%
21M
8:10/mi
2:46:01
↑ 106↓ 241.6%
35K· 21.75 mi
7:45/mi
2:51:49
↑ 17↓ 861.7%
23M
7:47/mi
3:01:34
↑ 23↓ 630.6%
24M
7:27/mi
3:09:01
↓ 821.3%
40K· 24.85 mi
7:37/mi
3:15:32
↓ 200.3%
25.2M
7:58/mi
3:18:17
↑ 13↓ 160.2%
Finish· 26.22 mi
7:14/mi
3:25:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:43:34
Pace7:54 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:42:05
Pace7:47 /mi
📊Negative Split: 1.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:0824:277:5224:27
7:52
-
10K
6.21 mi11:48:4749:067:5424:39
7:56
+0:04
15K
9.32 mi12:13:281:13:477:5524:41
7:57
+0:01
20K
12.43 mi12:37:541:38:137:5424:26
7:52
-0:05
Half
13.11 mi12:43:151:43:347:545:21
7:50
-0:02
25K
15.53 mi13:02:152:02:347:5319:00
7:50
0:00
30K
18.64 mi13:26:462:27:057:5324:31
7:53
+0:03
20M
20.00 mi13:37:322:37:517:5410:46
7:55
+0:02
21M
21.00 mi13:45:422:46:017:548:10
8:10
+0:15
35K
21.75 mi13:51:302:51:497:545:48
7:45
-0:25
23M
23.00 mi14:01:153:01:347:549:45
7:47
+0:02
24M
24.00 mi14:08:423:09:017:537:27
7:27
-0:20
40K
24.85 mi14:15:133:15:327:526:31
7:37
+0:10
25.2M
25.20 mi14:17:583:18:177:522:45
7:58
+0:21
Finish
26.22 mi14:25:203:25:397:517:22
7:14
-0:44

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

7:14 /mi

Average Pace

7:51 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:44

95% of race

Time at Steady Pace

10:55

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:51 /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 mi11:24:0824:277:5224:27
7:52
#13006
10K
6.21 mi11:48:4749:067:5424:39
7:56
#13612
15K
9.32 mi12:13:281:13:477:5524:41
7:57
#13711
20K
12.43 mi12:37:541:38:137:5424:26
7:52
#13352
Half
13.11 mi12:43:151:43:347:545:21
7:50
#13322
25K
15.53 mi13:02:152:02:347:5319:00
7:50
#12960
30K
18.64 mi13:26:462:27:057:5324:31
7:53
#12392
20M
20.00 mi13:37:322:37:517:5410:46
7:55
#12153
21M
21.00 mi13:45:422:46:017:548:10
8:10
#11916
35K
21.75 mi13:51:302:51:497:545:48
7:45
#11854
23M
23.00 mi14:01:153:01:347:549:45
7:47
#11594
24M
24.00 mi14:08:423:09:017:537:27
7:27
#11376
40K
24.85 mi14:15:133:15:327:526:31
7:37
#11182
25.2M
25.20 mi14:17:583:18:177:522:45
7:58
#11077
Finish
26.22 mi14:25:203:25:397:517:22
7:14
#10871
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi130063439343913949(Top 52%)4048(Top 35%)4048(Top 83%)
10K6.21 mi3.10 mi13612-6063810-3713810-37114275(Top 54%)4215(Top 37%)4215(Top 86%)
15K9.32 mi3.11 mi13711-993887-773887-7713949(Top 52%)4048(Top 35%)4048(Top 83%)
20K12.43 mi3.11 mi13352+3593692+1953692+19512288(Top 46%)3125(Top 27%)3125(Top 64%)
Half13.11 mi0.68 mi13322+303677+153677+1513102(Top 49%)3536(Top 31%)3536(Top 72%)
25K15.53 mi2.42 mi12960+3623481+1963481+19611404(Top 43%)2716(Top 24%)2716(Top 56%)
30K18.64 mi3.11 mi12392+5683194+2873194+28710083(Top 38%)2204(Top 19%)2204(Top 45%)
20M20.00 mi1.36 mi12153+2393084+1103084+1109745(Top 37%)2131(Top 19%)2131(Top 44%)
21M21.00 mi1.00 mi11916+2372960+1242960+1248460(Top 32%)1715(Top 15%)1715(Top 35%)
35K21.75 mi0.75 mi11854+622946+142946+1410334(Top 39%)2523(Top 22%)2523(Top 52%)
23M23.00 mi1.25 mi11594+2602822+1242822+1248361(Top 31%)1744(Top 15%)1744(Top 36%)
24M24.00 mi1.00 mi11376+2182722+1002722+1007414(Top 28%)1461(Top 13%)1461(Top 30%)
40K24.85 mi0.85 mi11182+1942641+812641+817497(Top 28%)1570(Top 14%)1570(Top 32%)
25.2M25.20 mi0.35 mi11077+1052603+382603+386465(Top 24%)1249(Top 11%)1249(Top 26%)
Finish26.22 mi1.02 mi10871+2062531+722531+726661(Top 25%)1312(Top 11%)1312(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

13949

Females

4048

F18-39

4048

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

14275

Females

4215

F18-39

4215

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

13949

Females

4048

F18-39

4048

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12288

Females

3125

F18-39

3125

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13102

Females

3536

F18-39

3536

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

11404

Females

2716

F18-39

2716

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10083

Females

2204

F18-39

2204

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9745

Females

2131

F18-39

2131

20M→21M

20.0 - 21.0 mi

Top 32%
×8story building
+106ft-24ft

Overall

8460

Females

1715

F18-39

1715

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10334

Females

2523

F18-39

2523

35K→23M

21.8 - 23.0 mi

Top 31%
×5story building
+23ft-63ft

Overall

8361

Females

1744

F18-39

1744

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

7414

Females

1461

F18-39

1461

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7497

Females

1570

F18-39

1570

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6465

Females

1249

F18-39

1249

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2story building
+22ft-21ft

Overall

6661

Females

1312

F18-39

1312

Passing Analysis

Category:
Athletes Passed
3215
Passed By
1080
Net Change
+2135
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13006
5K → 10K104710-606#13006#13612
10K → 15K139238-99#13612#13711
15K → 20K39132+359#13711#13352
20K → Half5020+30#13352#13322
Half → 25K37715+362#13322#12960
25K → 30K57911+568#12960#12392
30K → 20M2423+239#12392#12153
20M → 21M25013+237#12153#11916
21M → 35K8220+62#11916#11854
35K → 23M2688+260#11854#11594
23M → 24M2202+218#11594#11376
24M → 40K1984+194#11376#11182
40K → 25.2M1061+105#11182#11077
25.2M → Finish2093+206#11077#10871
TOTALS32151080+2135
📊

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