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SF MARATHON 1ST HALF 2026

Alonzo Rivera

Bib: 17656•M•Age: 28

Los Angeles, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Male)
#0 / 3619
Division (M25-29)
#0 / 796
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
11:28/mi
22:57
→ flat
4M
13:06/mi
49:08
↑ 67↓ 69
6M
13:45/mi
1:16:38
↑ 1231.1%
8M
15:13/mi
1:47:05
↑ 166↓ 531.1%
9.6M
13:36/mi
2:08:51
↑ 68↓ 1931.5%
10M
33:40/mi
2:22:18
↓ 241.1%
10.5M
9:28/mi
2:27:02
↓ 732.7%
12M
22:58/mi
3:01:29
↑ 2803.2%
Finish· 13.11 mi
17:52/mi
3:21:18
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:16:38
Pace12:46 /mi
2nd Half
Distance7.11 mi
Time2:04:40
Pace17:32 /mi
📊Positive Split: 62.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:12:1622:5711:2822:57
11:28
-
4M
4.00 mi07:38:2749:0812:1726:11
13:06
+1:38
6M
6.00 mi08:05:571:16:3812:4627:30
13:45
+0:39
8M
8.00 mi08:36:241:47:0513:2330:27
15:13
+1:28
9.6M
9.60 mi08:58:102:08:5113:2521:46
13:36
-1:37
10M
10.00 mi09:11:372:22:1814:1413:27
33:40
+20:04
10.5M
10.50 mi09:16:212:27:0214:004:44
9:28
-24:12
12M
12.00 mi09:50:483:01:2915:0734:27
22:58
+13:30
Finish
13.11 mi10:10:373:21:1815:2119:49
17:52
-5:06

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

9:28 /mi

Average Pace

15:21 /mi

Slowest Pace

33:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:44

2% of race

Time at Steady Pace

2:08:51

64% of race

Time at Slower Pace

1:07:43

34% of race

Average Pace: 15:21 /mi

Loading chart...
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 mi07:12:1622:5711:2822:57
11:28
#5399
4M
4.00 mi07:38:2749:0812:1726:11
13:06
#5916
6M
6.00 mi08:05:571:16:3812:4627:30
13:45
#6074
8M
8.00 mi08:36:241:47:0513:2330:27
15:13
#6199
9.6M
9.60 mi08:58:102:08:5113:2521:46
13:36
#6308
10M
10.00 mi09:11:372:22:1814:1413:27
33:40
#6369
10.5M
10.50 mi09:16:212:27:0214:004:44
9:28
#6391
12M
12.00 mi09:50:483:01:2915:0734:27
22:58
#6425
Finish
13.11 mi10:10:373:21:1815:2119:49
17:52
#6432
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 99%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

18:11

Segment Time

20:13/mi

Pace

0.90 mi

Distance

Overall

6494

Men

3576

Division

790

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi539931987176495(Top 99%)3574(Top 99%)783(Top 98%)
4M4.00 mi2.00 mi5916-5173409-211763-466149(Top 94%)3479(Top 96%)775(Top 97%)
6M6.00 mi2.00 mi6074-1583475-66778-156200(Top 94%)3510(Top 97%)787(Top 99%)
8M8.00 mi2.00 mi6199-1253515-40782-46311(Top 96%)3547(Top 98%)787(Top 99%)
9.6M9.60 mi1.60 mi6308-1093541-26785-36416(Top 98%)3555(Top 98%)787(Top 99%)
10M10.00 mi0.40 mi6369-613557-16787-26537(Top 99%)3592(Top 99%)791(Top 99%)
10.5M10.50 mi0.50 mi6391-223561-47876542(Top 99%)3595(Top 99%)790(Top 99%)
12M12.00 mi1.50 mi6425-343569-8791-46495(Top 99%)3574(Top 99%)783(Top 98%)
Finish13.11 mi1.11 mi6432-73570-17916488(Top 99%)3573(Top 99%)782(Top 98%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 99%
~flat
+5ft-3ft

Overall

6495

Males

3574

M25-29

784

2M→4M

2.0 - 4.0 mi

Top 94%
×4story building
+67ft-69ft

Overall

6149

Males

3479

M25-29

778

4M→6M

4.0 - 6.0 mi

Top 94%
×9story building
+123ft-9ft

Overall

6200

Males

3510

M25-29

790

6M→8M

6.0 - 8.0 mi

Top 96%
×12story building
+166ft-53ft

Overall

6311

Males

3547

M25-29

788

8M→9.6M

8.0 - 9.6 mi

Top 98%
×13story building
+68ft-193ft

Overall

6416

Males

3555

M25-29

788

9.6M→10M

9.6 - 10.0 mi

Top 99%
×2story building
+0ft-24ft

Overall

6537

Males

3592

M25-29

792

10M→10.5M

10.0 - 10.5 mi

Top 99%
×6story building
+1ft-73ft

Overall

6542

Males

3595

M25-29

791

10.5M→12M

10.5 - 12.0 mi

Top 99%
×21story building
+280ft-26ft

Overall

6495

Males

3574

M25-29

784

12M→Finish

12.0 - 13.1 mi

Top 99%
×7story building
+14ft-89ft

Overall

6488

Males

3573

M25-29

782

Passing Analysis

Category:
Athletes Passed
102*
Passed By
1135
Net Change
-1033
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5399
2M → 4M12529-517#5399#5916
4M → 6M35*193-158#5916#6074
6M → 8M25*150-125#6074#6199
8M → 9.6M3112-109#6199#6308
9.6M → 10M566-61#6308#6369
10M → 10.5M022-22#6369#6391
10.5M → 12M8*42-34#6391#6425
12M → Finish14*21-7#6425#6432
TOTALS102*1135-1033

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

📊

Passing Visuals

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