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SF MARATHON 1ST HALF 2026

Mahriah Alf

South San Francisco, CA

Bib: 13381 F 43

0:00
0:00
/ mi
Masters
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Overall
#0 / 6575
Top 8%
Gender (Female)
#0 / 2930
Top 3%
Masters (Masters Women)
#0 / 781
Top 2%
Division (F40-44)
#0 / 255
Top 4%
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
8:17/mi
16:34
→ flat
4M
8:21/mi
33:16
↑ 67↓ 69
6M
8:09/mi
49:34
↑ 123
8M
7:49/mi
1:05:11
↑ 166↓ 53
9.6M
7:49/mi
1:17:41
↑ 68↓ 193
10M
15:01/mi
1:23:41
↓ 24
10.5M
4:06/mi
1:25:44
↓ 73
12M
10:52/mi
1:42:02
↑ 280
Finish· 13.11 mi
8:22/mi
1:51:19
↑ 14↓ 89
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
49:348:16 /mi⚡ faster
2nd Half
1:01:458:41 /mi+24.6%
Positive split — 24.6% 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
2M
16:348:172.00 mi16:34
8:17
-
4M
33:168:192.00 mi16:42
8:21
+0:04
6M
49:348:162.00 mi16:18
8:09
-0:12
8M
1:05:118:092.00 mi15:37
7:49
-0:20
9.6M
1:17:418:061.60 mi12:30
7:49
0:00
10M
1:23:418:220.40 mi6:00
15:01
+7:12
10.5M
1:25:448:100.50 mi2:03
4:06
-10:55
12M
1:42:028:301.50 mi16:18
10:52
+6:46
Finish(13.11 mi)
1:51:198:291.11 mi9:17
8:22
-2:30
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

4:06 /mi

Average Pace

8:29 /mi

Slowest Pace

15:01 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:03

2% of race

Time at Steady Pace

1:26:58

78% of race

Time at Slower Pace

22:18

20% of race

Average Pace: 8:29 /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
Featured Segment

Garmin Challenge

Top 10%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:03

Segment Time

8:57/mi

Pace

0.90 mi

Distance

Overall

674

Women

122

Division

11

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
2M2.00 mi710119135471048
4M2.00 mi684+26117+212+171312212
6M2.00 mi631+53105+1211+1588979
8M2.00 mi517+11479+269+2357486
9.6M1.60 mi589-7297-1810-1134545235
10M0.40 mi588+1979+171714814
10.5M0.50 mi595-7100-3979014813
12M1.50 mi565+3097+311-25471048
Finish(13.11 mi)1.11 mi558+790+79+293618815

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 8%
~flat
+5ft-3ft

Overall

547

Females

104

F40-44

8

2M→4M

2.0 - 4.0 mi

Top 11%
×4story building
+67ft-69ft

Overall

713

Females

122

F40-44

13

4M→6M

4.0 - 6.0 mi

Top 9%
×9story building
+123ft-9ft

Overall

588

Females

97

F40-44

10

6M→8M

6.0 - 8.0 mi

Top 5%
×12story building
+166ft-53ft

Overall

357

Females

48

F40-44

7

8M→9.6M

8.0 - 9.6 mi

Top 20%
×13story building
+68ft-193ft

Overall

1345

Females

452

F40-44

36

9.6M→10M

9.6 - 10.0 mi

Top 11%
×2story building
+0ft-24ft

Overall

717

Females

148

F40-44

15

10M→10.5M

10.0 - 10.5 mi

Top 12%
×6story building
+1ft-73ft

Overall

790

Females

148

F40-44

13

10.5M→12M

10.5 - 12.0 mi

Top 8%
×21story building
+280ft-26ft

Overall

547

Females

104

F40-44

8

12M→Finish

12.0 - 13.1 mi

Top 14%
×7story building
+14ft-89ft

Overall

936

Females

188

F40-44

15

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#710
2M → 4M
3965+26
#710 → #684
4M → 6M
1063+53
#684 → #631
6M → 8M
9123+114
#631 → #517
8M → 9.6M
8210-72
#517 → #589
9.6M → 10M
67+1
#589 → #588
10M → 10.5M
81-7
#588 → #595
10.5M → 12M
1848+30
#595 → #565
12M → Finish
1724*+7
#565 → #558
TOTALS
189341*+152
#710 → #558

* 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

Race Place Events

Race Place Events