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BOSTON MARATHON 2023

Stephanie Snow

Bib: 13775•F

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 40%
Gender (Female)
#0 / 11423
Top 21%
Masters (Masters Women)
#0 / 6539
Top 9%
Division (F40-44)
#0 / 1878
Top 19%
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
7:45/mi
24:05
↑ 97↓ 3451.5%
10K· 6.21 mi
7:59/mi
48:52
↑ 79↓ 1380.4%
15K· 9.32 mi
7:48/mi
1:13:06
↑ 67↓ 78
20K· 12.43 mi
7:51/mi
1:37:30
↑ 106↓ 860.1%
Half· 13.11 mi
7:36/mi
1:42:41
↑ 19↓ 370.5%
25K· 15.53 mi
7:50/mi
2:01:40
↑ 66↓ 880.2%
30K· 18.64 mi
7:51/mi
2:26:02
↑ 181↓ 1480.2%
20M
7:49/mi
2:36:40
↑ 64↓ 500.2%
21M
8:25/mi
2:45:05
↑ 106↓ 241.6%
35K· 21.75 mi
7:32/mi
2:50:43
↑ 17↓ 861.7%
23M
7:47/mi
3:00:28
↑ 23↓ 630.6%
24M
7:28/mi
3:07:56
↓ 821.3%
40K· 24.85 mi
7:35/mi
3:14:25
↓ 200.3%
25.2M
8:07/mi
3:17:13
↑ 13↓ 160.2%
Finish· 26.22 mi
7:21/mi
3:24:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:42:41
Pace7:50 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:42:01
Pace7:47 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4424:057:4524:05
7:45
-
10K
6.21 mi11:17:3148:527:5224:47
7:59
+0:14
15K
9.32 mi11:41:451:13:067:5124:14
7:48
-0:11
20K
12.43 mi12:06:091:37:307:5124:24
7:51
+0:03
Half
13.11 mi12:11:201:42:417:505:11
7:36
-0:15
25K
15.53 mi12:30:192:01:407:5018:59
7:50
+0:14
30K
18.64 mi12:54:412:26:027:5024:22
7:51
+0:01
20M
20.00 mi13:05:192:36:407:5010:38
7:49
-0:02
21M
21.00 mi13:13:442:45:057:528:25
8:25
+0:36
35K
21.75 mi13:19:222:50:437:515:38
7:32
-0:53
23M
23.00 mi13:29:073:00:287:519:45
7:47
+0:15
24M
24.00 mi13:36:353:07:567:507:28
7:28
-0:19
40K
24.85 mi13:43:043:14:257:496:29
7:35
+0:07
25.2M
25.20 mi13:45:523:17:137:502:48
8:07
+0:32
Finish
26.22 mi13:53:213:24:427:497:29
7:21
-0:46

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

7:49 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:29

95% of race

Time at Steady Pace

11:13

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:48 /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 mi10:52:4424:057:4524:05
7:45
#11957
10K
6.21 mi11:17:3148:527:5224:47
7:59
#13311
15K
9.32 mi11:41:451:13:067:5124:14
7:48
#13075
20K
12.43 mi12:06:091:37:307:5124:24
7:51
#12815
Half
13.11 mi12:11:201:42:417:505:11
7:36
#12706
25K
15.53 mi12:30:192:01:407:5018:59
7:50
#12473
30K
18.64 mi12:54:412:26:027:5024:22
7:51
#11882
20M
20.00 mi13:05:192:36:407:5010:38
7:49
#11660
21M
21.00 mi13:13:442:45:057:528:25
8:25
#11528
35K
21.75 mi13:19:222:50:437:515:38
7:32
#11387
23M
23.00 mi13:29:073:00:287:519:45
7:47
#11181
24M
24.00 mi13:36:353:07:567:507:28
7:28
#10986
40K
24.85 mi13:43:043:14:257:496:29
7:35
#10811
25.2M
25.20 mi13:45:523:17:137:502:48
8:07
#10732
Finish
26.22 mi13:53:213:24:427:497:29
7:21
#10564
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi119572850285012746(Top 48%)3326(Top 29%)3326(Top 177%)
10K6.21 mi3.10 mi13311-13543636-7863636-78614667(Top 55%)4465(Top 39%)4465(Top 238%)
15K9.32 mi3.11 mi13075+2363509+1273509+12712746(Top 48%)3326(Top 29%)3326(Top 177%)
20K12.43 mi3.11 mi12815+2603373+1363373+13612219(Top 46%)3101(Top 27%)3101(Top 165%)
Half13.11 mi0.68 mi12706+1093318+553318+5511108(Top 42%)2450(Top 21%)2450(Top 130%)
25K15.53 mi2.42 mi12473+2333215+1033215+10311374(Top 43%)2704(Top 24%)2704(Top 144%)
30K18.64 mi3.11 mi11882+5912912+3032912+3039705(Top 36%)2027(Top 18%)2027(Top 108%)
20M20.00 mi1.36 mi11660+2222805+1072805+1079106(Top 34%)1846(Top 16%)1846(Top 98%)
21M21.00 mi1.00 mi11528+1322749+562749+5610015(Top 38%)2405(Top 21%)2405(Top 128%)
35K21.75 mi0.75 mi11387+1412680+692680+698834(Top 33%)1864(Top 16%)1864(Top 99%)
23M23.00 mi1.25 mi11181+2062594+862594+868369(Top 31%)1751(Top 15%)1751(Top 93%)
24M24.00 mi1.00 mi10986+1952515+792515+797534(Top 28%)1513(Top 13%)1513(Top 81%)
40K24.85 mi0.85 mi10811+1752457+582457+587275(Top 27%)1493(Top 13%)1493(Top 79%)
25.2M25.20 mi0.35 mi10732+792431+262431+267352(Top 28%)1592(Top 14%)1592(Top 85%)
Finish26.22 mi1.02 mi10564+1682380+512380+517457(Top 28%)1625(Top 14%)1625(Top 87%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

12746

Females

3326

F40-44

3326

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

14667

Females

4465

F40-44

4465

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

12746

Females

3326

F40-44

3326

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12219

Females

3101

F40-44

3101

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11108

Females

2450

F40-44

2450

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

11374

Females

2704

F40-44

2704

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9705

Females

2027

F40-44

2027

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9106

Females

1846

F40-44

1846

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10015

Females

2405

F40-44

2405

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

8834

Females

1864

F40-44

1864

35K→23M

21.8 - 23.0 mi

Top 31%
×5story building
+23ft-63ft

Overall

8369

Females

1751

F40-44

1751

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

7534

Females

1513

F40-44

1513

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7275

Females

1493

F40-44

1493

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7352

Females

1592

F40-44

1592

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

7457

Females

1625

F40-44

1625

Passing Analysis

Category:
Athletes Passed
3091
Passed By
1698
Net Change
+1393
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11957
5K → 10K341388-1354#11957#13311
10K → 15K340104+236#13311#13075
15K → 20K31858+260#13075#12815
20K → Half1167+109#12815#12706
Half → 25K27239+233#12706#12473
25K → 30K60211+591#12473#11882
30K → 20M2308+222#11882#11660
20M → 21M16432+132#11660#11528
21M → 35K1487+141#11528#11387
35K → 23M22014+206#11387#11181
23M → 24M20611+195#11181#10986
24M → 40K1827+175#10986#10811
40K → 25.2M812+79#10811#10732
25.2M → Finish17810+168#10732#10564
TOTALS30911698+1393
📊

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