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BOSTON MARATHON 2023

Alexis Stephens

MD

Bib: 17906 F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 38%
Gender (Female)
#0 / 11423
Top 19%
Division (F18-39)
#0 / 4884
Top 34%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:02/mi
24:57
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:49/mi
49:14
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:53/mi
1:13:43
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:49/mi
1:38:00
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:50/mi
1:43:21
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:46/mi
2:02:10
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:50/mi
2:26:30
↑ 181↓ 1480.2%
138 ft elev
20M
7:52/mi
2:37:12
↑ 64↓ 500.2%
148 ft elev
21M
8:00/mi
2:45:12
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:30/mi
2:50:49
↑ 17↓ 861.7%
156 ft elev
23M
7:38/mi
3:00:22
↑ 23↓ 630.6%
116 ft elev
24M
7:22/mi
3:07:44
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:30/mi
3:14:09
↓ 200.3%
20 ft elev
25.2M
7:47/mi
3:16:50
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:40/mi
3:23:38
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:43:217:53 /mi+3.0%
2nd Half
1:40:177:39 /mi✓ faster
Negative split — 3.0% faster in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
24:578:023.11 mi24:57
8:02
-
10K
49:147:553.10 mi24:17
7:49
-0:13
15K
1:13:437:553.11 mi24:29
7:53
+0:04
20K
1:38:007:533.11 mi24:17
7:49
-0:04
Half(13.11 mi)
1:43:217:530.68 mi5:21
7:50
+0:01
25K
2:02:107:522.42 mi18:49
7:46
-0:04
30K
2:26:307:523.11 mi24:20
7:50
+0:04
20M
2:37:127:521.36 mi10:42
7:52
+0:02
21M
2:45:127:521.00 mi8:00
8:00
+0:08
35K
2:50:497:510.75 mi5:37
7:30
-0:30
23M
3:00:227:511.25 mi9:33
7:38
+0:08
24M
3:07:447:491.00 mi7:22
7:22
-0:16
40K
3:14:097:490.85 mi6:25
7:30
+0:08
25.2M
3:16:507:490.35 mi2:41
7:47
+0:17
Finish(26.22 mi)
3:23:387:461.02 mi6:48
6:40
-1:07
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:40 /mi

Average Pace

7:46 /mi

Slowest Pace

8:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

35:45

18% of race

Time at Steady Pace

2:14:56

66% of race

Time at Slower Pace

32:57

16% of race

Average Pace: 7:46 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi14236416441641335436923692
10K3.10 mi13766+4703905+2593905+2591327035883588
15K3.11 mi13645+1213846+593846+591335436923692
20K3.11 mi13189+4563601+2453601+2451187228862886
Half(13.11 mi)0.68 mi13169+203584+173584+171309535293529
25K2.42 mi12721+4483345+2393345+2391080523902390
30K3.11 mi12114+6073037+3083037+308962119861986
20M1.36 mi11860+2542917+1202917+120942319911991
21M1.00 mi11571+2892772+1452772+145738812841284
35K0.75 mi11439+1322708+642708+64863717561756
23M1.25 mi11141+2982570+1382570+138731213091309
24M1.00 mi10912+2292479+912479+91688112381238
40K0.85 mi10717+1952407+722407+72680912941294
25.2M0.35 mi10611+1062374+332374+335399891891
Finish(26.22 mi)1.02 mi10247+3642221+1532221+1533405354354

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

13354

Females

3692

F18-39

3692

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

13270

Females

3588

F18-39

3588

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

13354

Females

3692

F18-39

3692

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

11872

Females

2886

F18-39

2886

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13095

Females

3529

F18-39

3529

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10805

Females

2390

F18-39

2390

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9621

Females

1986

F18-39

1986

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

9423

Females

1991

F18-39

1991

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7388

Females

1284

F18-39

1284

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

8637

Females

1756

F18-39

1756

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7312

Females

1309

F18-39

1309

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

6881

Females

1238

F18-39

1238

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6809

Females

1294

F18-39

1294

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5399

Females

891

F18-39

891

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2story building
+22ft-21ft

Overall

3405

Females

354

F18-39

354

Passing Analysis

Category:
▲Net Change
+0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#14236
5K → 10K
128598+470
#14236 → #13766
10K → 15K
136257+121
#13766 → #13645
15K → 20K
23479+456
#13645 → #13189
20K → Half
2545+20
#13189 → #13169
Half → 25K
5453+448
#13169 → #12721
25K → 30K
8615+607
#12721 → #12114
30K → 20M
5259+254
#12114 → #11860
20M → 21M
3292+289
#11860 → #11571
21M → 35K
4136+132
#11571 → #11439
35K → 23M
8306+298
#11439 → #11141
23M → 24M
5234+229
#11141 → #10912
24M → 40K
4199+195
#10912 → #10717
40K → 25.2M
3109+106
#10717 → #10611
25.2M → Finish
1365+364
#10611 → #10247
TOTALS
3584347+3989
#14236 → #10247

Passing Visualized

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