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SF MARATHON 1ST HALF 2026

Isis Mabel Alas

Concord, CA

Bib: 19650 F 48

0:00
0:00
/ mi
Masters
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Masters (Masters Women)
#0 / 781
Division (F45-49)
#0 / 183
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
2M
12:37/mi
25:14
→ flat
12 ft elev
4M
12:38/mi
50:29
↑ 67↓ 69
10 ft elev
6M
13:00/mi
1:16:29
↑ 1231.1%
126 ft elev
8M
13:00/mi
1:42:29
↑ 166↓ 531.1%
246 ft elev
9.6M
13:00/mi
2:03:17
↑ 68↓ 1931.5%
126 ft elev
10M
25:09/mi
2:13:20
↓ 241.1%
90 ft elev
10.5M
7:08/mi
2:16:54
↓ 732.7%
18 ft elev
12M
18:14/mi
2:44:15
↑ 2803.2%
272 ft elev
Finish· 13.11 mi
13:27/mi
2:59:10
↑ 14↓ 891.3%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
1:16:2912:45 /mi⚡ faster
2nd Half
1:42:4114:27 /mi+34.3%
Positive split — 34.3% 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
25:1412:372.00 mi25:14
12:37
-
4M
50:2912:372.00 mi25:15
12:38
+0:01
6M
1:16:2912:452.00 mi26:00
13:00
+0:22
8M
1:42:2912:492.00 mi26:00
13:00
0:00
9.6M
2:03:1712:511.60 mi20:48
13:00
0:00
10M
2:13:2013:200.40 mi10:03
25:09
+12:09
10.5M
2:16:5413:020.50 mi3:34
7:08
-18:01
12M
2:44:1513:411.50 mi27:21
18:14
+11:06
Finish(13.11 mi)
2:59:1013:401.11 mi14:55
13:27
-4:47
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

7:08 /mi

Average Pace

13:40 /mi

Slowest Pace

25:09 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:34

2% of race

Time at Steady Pace

2:18:12

77% of race

Time at Slower Pace

37:24

21% of race

Average Pace: 13:40 /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 89%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

13:37

Segment Time

15:08/mi

Pace

0.90 mi

Distance

Overall

5823

Women

2499

Division

142

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
2M2.00 mi6279271815755552367138
4M2.00 mi6120+1592620+98151+659192503141
6M2.00 mi6059+612566+54145+658502453135
8M2.00 mi5935+1242490+76136+954402190125
9.6M1.60 mi6065-1302583-93144-862882764170
10M0.40 mi6068-32594-11145-156612420137
10.5M0.50 mi6090-222605-11146-162182731158
12M1.50 mi6029+612574+31147-155552367138
Finish(13.11 mi)1.11 mi6010+192563+11145+257742496139

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 84%
~flat
+5ft-3ft

Overall

5555

Females

2367

F45-49

139

2M→4M

2.0 - 4.0 mi

Top 90%
×4story building
+67ft-69ft

Overall

5919

Females

2503

F45-49

142

4M→6M

4.0 - 6.0 mi

Top 89%
×9story building
+123ft-9ft

Overall

5850

Females

2453

F45-49

136

6M→8M

6.0 - 8.0 mi

Top 83%
×12story building
+166ft-53ft

Overall

5440

Females

2190

F45-49

126

8M→9.6M

8.0 - 9.6 mi

Top 96%
×13story building
+68ft-193ft

Overall

6288

Females

2764

F45-49

171

9.6M→10M

9.6 - 10.0 mi

Top 86%
×2story building
+0ft-24ft

Overall

5661

Females

2420

F45-49

138

10M→10.5M

10.0 - 10.5 mi

Top 95%
×6story building
+1ft-73ft

Overall

6218

Females

2731

F45-49

159

10.5M→12M

10.5 - 12.0 mi

Top 84%
×21story building
+280ft-26ft

Overall

5555

Females

2367

F45-49

139

12M→Finish

12.0 - 13.1 mi

Top 88%
×7story building
+14ft-89ft

Overall

5774

Females

2496

F45-49

139

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#6279
2M → 4M
28187*+159
#6279 → #6120
4M → 6M
43104*+61
#6120 → #6059
6M → 8M
36160*+124
#6059 → #5935
8M → 9.6M
14818-130
#5935 → #6065
9.6M → 10M
3027-3
#6065 → #6068
10M → 10.5M
242-22
#6068 → #6090
10.5M → 12M
2384*+61
#6090 → #6029
12M → Finish
2140*+19
#6029 → #6010
TOTALS
353622*+269
#6279 → #6010

* 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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