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SF MARATHON 2ND HALF 2026

Alexander Chyu

Bib: 23441•M•Age: 43

SF, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 3840
Gender (Male)
#0 / 2065
Masters (Masters Men)
#0 / 555
Division (M40-44)
#0 / 200
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
18:47
Rank: #1531
Start → 2M
18:47 | 9:23/mi
4M
37:50
Rank: #1776 (-245)
2M → 4M
19:03 | 9:32/mi
6M
1:02:45
Rank: #1894 (-118)
4M → 6M
24:55 | 12:27/mi
8M
1:17:44
Rank: #1848 (+46)
6M → 8M
14:59 | 7:29/mi
10M
1:39:46
Rank: #1935 (-87)
8M → 10M
22:02 | 11:01/mi
12M
2:03:45
Rank: #2029 (-94)
10M → 12M
23:59 | 11:59/mi
Finish· 13.11 mi
2:16:02
Rank: #2025 (+4)
12M → Finish
12:17 | 11:04/mi

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:02:45
Pace10:28 /mi
2nd Half
Distance7.11 mi
Time1:13:17
Pace10:19 /mi
📊Positive Split: 16.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi08:51:0118:479:2318:47
9:23
-
4M
4.00 mi09:10:0437:509:2819:03
9:32
+0:09
6M
6.00 mi09:34:591:02:4510:2824:55
12:27
+2:55
8M
8.00 mi09:49:581:17:449:4314:59
7:29
-4:58
10M
10.00 mi10:12:001:39:469:5922:02
11:01
+3:32
12M
12.00 mi10:35:592:03:4510:1923:59
11:59
+0:58
Finish
13.11 mi10:48:162:16:0210:2312:17
11:04
-0:55

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

7:29 /mi

Average Pace

10:23 /mi

Slowest Pace

12:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

52:49

39% of race

Time at Steady Pace

34:19

25% of race

Time at Slower Pace

48:54

36% of race

Average Pace: 10:23 /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 mi08:51:0118:479:2318:47
9:23
#1531
4M
4.00 mi09:10:0437:509:2819:03
9:32
#1776
6M
6.00 mi09:34:591:02:4510:2824:55
12:27
#1894
8M
8.00 mi09:49:581:17:449:4314:59
7:29
#1848
10M
10.00 mi10:12:001:39:469:5922:02
11:01
#1935
12M
12.00 mi10:35:592:03:4510:1923:59
11:59
#2029
Finish
13.11 mi10:48:162:16:0210:2312:17
11:04
#2025
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
2M2.00 mi2.00 mi15311053962428(Top 63%)1462(Top 71%)140(Top 70%)
4M4.00 mi2.00 mi1776-2451187-134109-132016(Top 53%)1303(Top 63%)124(Top 62%)
6M6.00 mi2.00 mi1894-1181252-65115-62122(Top 55%)1368(Top 66%)127(Top 64%)
8M8.00 mi2.00 mi1848+461223+29110+51787(Top 47%)1187(Top 57%)103(Top 52%)
10M10.00 mi2.00 mi1935-871273-50115-52222(Top 58%)1395(Top 68%)129(Top 65%)
12M12.00 mi2.00 mi2029-941309-36117-22428(Top 63%)1462(Top 71%)140(Top 70%)
Finish13.11 mi1.11 mi2025+41303+61172196(Top 57%)1337(Top 65%)119(Top 60%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 63%
×9stories
+138ft-68ft

Overall

2428

Males

1462

M40-44

141

2M→4M

2.0 - 4.0 mi

Top 53%
×13stories
+163ft-19ft

Overall

2016

Males

1303

M40-44

124

4M→6M

4.0 - 6.0 mi

Top 55%
×4stories
+55ft-83ft

Overall

2122

Males

1368

M40-44

128

6M→8M

6.0 - 8.0 mi

Top 47%
×10stories
+65ft-151ft

Overall

1787

Males

1187

M40-44

103

8M→10M

8.0 - 10.0 mi

Top 58%
×10stories
+61ft-174ft

Overall

2222

Males

1395

M40-44

130

10M→12M

10.0 - 12.0 mi

Top 63%
×3stories
+41ft-53ft

Overall

2428

Males

1462

M40-44

141

12M→Finish

12.0 - 13.1 mi

Top 57%
×1human
+6ft-6ft

Overall

2196

Males

1337

M40-44

119

Passing Analysis

Category:
Athletes Passed
146*
Passed By
640
Net Change
-494
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1531
2M → 4M21266-245#1531#1776
4M → 6M15133-118#1776#1894
6M → 8M5913+46#1894#1848
8M → 10M12*99-87#1848#1935
10M → 12M17111-94#1935#2029
12M → Finish22*18+4#2029#2025
TOTALS146*640-494

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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