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SF MARATHON 1ST HALF 2025

Emily Vlasak

Zionsville, IN

Bib: 14045 F 27

0:00
0:00
/ mi
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Overall
#0 / 7100
Gender (Female)
#0 / 3107
Top 46%
Division (F25-29)
#0 / 761
Race Day Weather
56°/46°F
light rain

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
1.81M
10:02/mi
18:09
→ flat
12 ft elev
5.34M
10:28/mi
55:07
↑ 80↓ 74
19 ft elev
6.15M
10:42/mi
1:03:47
↑ 1262.8%
149 ft elev
10.54M
10:51/mi
1:51:23
↑ 230↓ 3610.6%
20 ft elev
11.05M
14:52/mi
1:58:58
↑ 1726.4%
213 ft elev
Finish· 13.11 mi
11:38/mi
2:22:55
↑ 97↓ 1140.2%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.15M
1:03:4710:22 /mi⚡ faster
2nd Half
1:19:0811:22 /mi+24.1%
Positive split — 24.1% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1.81M
18:0910:021.81 mi18:09
10:02
-
5.34M
55:0710:193.53 mi36:58
10:28
+0:26
6.15M
1:03:4710:220.81 mi8:40
10:42
+0:14
10.54M
1:51:2310:344.39 mi47:36
10:51
+0:09
11.05M
1:58:5810:460.51 mi7:35
14:52
+4:01
Finish(13.11 mi)
2:22:5510:542.06 mi23:57
11:38
-3:14
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:02 /mi

Average Pace

10:54 /mi

Slowest Pace

14:52 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

18:09

13% of race

Time at Steady Pace

1:57:11

82% of race

Time at Slower Pace

7:35

5% of race

Average Pace: 10:54 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
1.81M1.81 mi3959136135839591361358
5.34M3.53 mi4104-1451429-68383-2542091485406
6.15M0.81 mi4002+1021378+51376+737141251347
10.54M4.39 mi3983+191378389-1340441419395
11.05M0.51 mi3961+221366+12387+238331357365
Finish(13.11 mi)2.06 mi4061-1001439-73397-1045751782483

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 56%
~flat
+4ft-3ft

Overall

3959

Females

1361

F25-29

358

1.81M→5.34M

1.8 - 5.3 mi

Top 59%
×4story building
+80ft-74ft

Overall

4209

Females

1485

F25-29

407

5.34M→6.15M

5.3 - 6.2 mi

Top 52%
×10story building
+126ft-4ft

Overall

3714

Females

1251

F25-29

348

6.15M→10.54M

6.2 - 10.5 mi

Top 57%
×21story building
+230ft-361ft

Overall

4044

Females

1419

F25-29

395

10.54M→11.05M

10.5 - 11.1 mi

Top 54%
×14story building
+172ft-0ft

Overall

3833

Females

1357

F25-29

366

11.05M→Finish

11.1 - 13.1 mi

Top 64%
×7story building
+97ft-114ft

Overall

4575

Females

1782

F25-29

483

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 1.81M-#3959
1.81M → 5.34M
326181*-145
#3959 → #4104
5.34M → 6.15M
22124+102
#4104 → #4002
6.15M → 10.54M
170189*+19
#4002 → #3983
10.54M → 11.05M
3961+22
#3983 → #3961
11.05M → Finish
15151*-100
#3961 → #4061
TOTALS
708606*-102
#3959 → #4061

* Includes athletes who did not complete a segment (DNF/DNQ).

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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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

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