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SF MARATHON 2ND HALF 2026

Cassandra Alcantara

Corte Madera, CA

Bib: 25420 F 30

0:00
0:00
/ mi
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Overall
#0 / 3840
Gender (Female)
#0 / 1760
Division (F30-34)
#0 / 408
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
48 ft elev
2M
13:49/mi
27:38
↑ 138↓ 680.7%
122 ft elev
4M
13:13/mi
54:03
↑ 1631.4%
280 ft elev
6M
16:08/mi
1:26:19
↑ 55↓ 830.3%
247 ft elev
8M
10:22/mi
1:47:03
↑ 65↓ 1510.8%
143 ft elev
10M
14:53/mi
2:16:48
↑ 61↓ 1741.1%
25 ft elev
12M
16:08/mi
2:49:04
↑ 41↓ 530.1%
12 ft elev
Finish· 13.11 mi
15:51/mi
3:06:39
→ flat
11 ft elev
Course Elevation
9–292 ft
≈
×24story building
•▲ 548 ft climb · ▼ 587 ft descent

The Course

Half Splits

1st Half· via 6M
1:26:1914:23 /mi⚡ faster
2nd Half
1:40:2014:07 /mi+16.2%
Positive split — 16.2% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:18:4227:3813:4927:38
13:49
-
4M
4.00 mi09:45:0754:0313:3126:25
13:13
-0:36
6M
6.00 mi10:17:231:26:1914:2332:16
16:08
+2:55
8M
8.00 mi10:38:071:47:0313:2320:44
10:22
-5:46
10M
10.00 mi11:07:522:16:4813:4129:45
14:53
+4:31
12M
12.00 mi11:40:082:49:0414:0532:16
16:08
+1:15
Finish
13.11 mi11:57:433:06:3914:1417:35
15:51
-0:17

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

10:22 /mi

Average Pace

14:14 /mi

Slowest Pace

16:08 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:47

40% of race

Time at Steady Pace

47:20

25% of race

Time at Slower Pace

1:04:32

35% of race

Average Pace: 14:14 /mi

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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...
0mi3.3mi6.6mi9.8mi13.1mi
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
2M
2.00 mi09:18:4227:3813:4927:38
13:49
#3700
4M
4.00 mi09:45:0754:0313:3126:25
13:13
#3659
6M
6.00 mi10:17:231:26:1914:2332:16
16:08
#3603
8M
8.00 mi10:38:071:47:0313:2320:44
10:22
#3594
10M
10.00 mi11:07:522:16:4813:4129:45
14:53
#3605
12M
12.00 mi11:40:082:49:0414:0532:16
16:08
#3615
Finish
13.11 mi11:57:433:06:3914:1417:35
15:51
#3606
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi2.00 mi3700167439336051635389
4M4.00 mi2.00 mi3659+411651+23389+435901614376
6M6.00 mi2.00 mi3603+561616+35383+634961544371
8M8.00 mi2.00 mi3594+91607+938334951542365
10M10.00 mi2.00 mi3605-111613-6385-235801611378
12M12.00 mi2.00 mi3615-101620-7386-136051635389
Finish13.11 mi1.11 mi3606+91618+2388-236041634387

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 94%
×9story building
+138ft-68ft

Overall

3605

Females

1635

F30-34

389

2M→4M

2.0 - 4.0 mi

Top 93%
×13story building
+163ft-19ft

Overall

3590

Females

1614

F30-34

377

4M→6M

4.0 - 6.0 mi

Top 91%
×4story building
+55ft-83ft

Overall

3496

Females

1544

F30-34

372

6M→8M

6.0 - 8.0 mi

Top 91%
×10story building
+65ft-151ft

Overall

3495

Females

1542

F30-34

365

8M→10M

8.0 - 10.0 mi

Top 93%
×10story building
+61ft-174ft

Overall

3580

Females

1611

F30-34

378

10M→12M

10.0 - 12.0 mi

Top 94%
×3story building
+41ft-53ft

Overall

3605

Females

1635

F30-34

389

12M→Finish

12.0 - 13.1 mi

Top 94%
×1human
+6ft-6ft

Overall

3604

Females

1634

F30-34

387

Passing Analysis

Category:
Athletes Passed
157*
Passed By
63
Net Change
+94
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3700
2M → 4M465+41#3700#3659
4M → 6M659+56#3659#3603
6M → 8M14*5+9#3603#3594
8M → 10M13*24-11#3594#3605
10M → 12M515-10#3605#3615
12M → Finish14*5+9#3615#3606
TOTALS157*63+94

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

Passing Charts

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