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SF MARATHON 2ND HALF 2026

Serena Aluizo

Harbor City, CA

Bib: 23182 F 14

0:00
0:00
/ mi
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Overall
#0 / 3840
Top 46%
Gender (Female)
#0 / 1760
Top 34%
F19 & Under
#0 / 52
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
9:47/mi
19:34
↑ 138↓ 680.7%
122 ft elev
4M
8:51/mi
37:16
↑ 1631.4%
280 ft elev
6M
11:34/mi
1:00:24
↑ 55↓ 830.3%
247 ft elev
8M
7:35/mi
1:15:35
↑ 65↓ 1510.8%
143 ft elev
10M
11:01/mi
1:37:36
↑ 61↓ 1741.1%
25 ft elev
12M
10:53/mi
1:59:23
↑ 41↓ 530.1%
12 ft elev
Finish· 13.11 mi
10:00/mi
2:10:28
→ 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
1:00:2410:04 /mi⚡ faster
2nd Half
1:10:049:51 /mi+16.0%
Positive split — 16.0% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi08:55:3619:349:4719:34
9:47
-
4M
4.00 mi09:13:1837:169:1917:42
8:51
-0:56
6M
6.00 mi09:36:261:00:2410:0423:08
11:34
+2:43
8M
8.00 mi09:51:371:15:359:2715:11
7:35
-3:59
10M
10.00 mi10:13:381:37:369:4622:01
11:01
+3:26
12M
12.00 mi10:35:251:59:239:5721:47
10:53
-0:08
Finish
13.11 mi10:46:302:10:289:5711:05
10:00
-0:53

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

7:35 /mi

Average Pace

9:57 /mi

Slowest Pace

11:34 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

32:53

25% of race

Time at Steady Pace

30:39

23% of race

Time at Slower Pace

1:06:56

51% of race

Average Pace: 9:57 /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 mi08:55:3619:349:4719:34
9:47
#1844
4M
4.00 mi09:13:1837:169:1917:42
8:51
#1660
6M
6.00 mi09:36:261:00:2410:0423:08
11:34
#1636
8M
8.00 mi09:51:371:15:359:2715:11
7:35
#1683
10M
10.00 mi10:13:381:37:369:4622:01
11:01
#1779
12M
12.00 mi10:35:251:59:239:5721:47
10:53
#1781
Finish
13.11 mi10:46:302:10:289:5711:05
10:00
#1763
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF19 & UnderSeg. OverallSeg. FemalesSeg. F19 & Under
2M2.00 mi2.00 mi184460629185265627
4M4.00 mi2.00 mi1660+184529+7727+2150947725
6M6.00 mi2.00 mi1636+24514+1526+1159451127
8M8.00 mi2.00 mi1683-47538-2428-2188163430
10M10.00 mi2.00 mi1779-96587-4928221481331
12M12.00 mi2.00 mi1781-2596-927+1185265627
Finish13.11 mi1.11 mi1763+18593+327156453824

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 48%
×9story building
+138ft-68ft

Overall

1852

Females

656

F0-14

2

2M→4M

2.0 - 4.0 mi

Top 39%
×13story building
+163ft-19ft

Overall

1509

Females

477

F0-14

1

4M→6M

4.0 - 6.0 mi

Top 42%
×4story building
+55ft-83ft

Overall

1594

Females

511

F0-14

2

6M→8M

6.0 - 8.0 mi

Top 49%
×10story building
+65ft-151ft

Overall

1881

Females

634

F0-14

2

8M→10M

8.0 - 10.0 mi

Top 58%
×10story building
+61ft-174ft

Overall

2214

Females

813

F0-14

2

10M→12M

10.0 - 12.0 mi

Top 48%
×3story building
+41ft-53ft

Overall

1852

Females

656

F0-14

2

12M→Finish

12.0 - 13.1 mi

Top 41%
×1human
+6ft-6ft

Overall

1564

Females

538

F0-14

2

Passing Analysis

Category:
Athletes Passed
348*
Passed By
267
Net Change
+81
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1844
2M → 4M19713+184#1844#1660
4M → 6M6137+24#1660#1636
6M → 8M1663-47#1636#1683
8M → 10M11*107-96#1683#1779
10M → 12M3436-2#1779#1781
12M → Finish29*11+18#1781#1763
TOTALS348*267+81

* 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