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SF MARATHON 2ND HALF 2026

Byron Tam

Bib: 26889•M•Age: 41

Las Vegas, NV

0:00
0:00
/ mi
Masters
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Overall
#0 / 3840
Top 50%
Gender (Male)
#0 / 2065
Masters (Masters Men)
#0 / 555
Division (M40-44)
#0 / 200
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
9–292 ft
≈
×24story building
•▲ 548 ft climb · ▼ 587 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
10:28/mi
20:57
↑ 138↓ 680.7%
4M
10:01/mi
40:59
↑ 1631.4%
6M
13:10/mi
1:07:19
↑ 55↓ 830.3%
8M
7:12/mi
1:21:44
↑ 65↓ 1510.8%
10M
10:29/mi
1:42:41
↑ 61↓ 1741.1%
12M
10:00/mi
2:02:41
↑ 41↓ 530.1%
Finish· 13.11 mi
9:49/mi
2:13:34
→ flat

The Course

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Half Splits

1st Half· via 6M
Distance6.00 mi
Time1:07:19
Pace11:13 /mi
2nd Half✓ Faster
Distance7.11 mi
Time1:06:15
Pace9:19 /mi
📊Negative Split: 1.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:05:1220:5710:2820:57
10:28
-
4M
4.00 mi09:25:1440:5910:1520:02
10:01
-0:27
6M
6.00 mi09:51:341:07:1911:1326:20
13:10
+3:09
8M
8.00 mi10:05:591:21:4410:1314:25
7:12
-5:58
10M
10.00 mi10:26:561:42:4110:1620:57
10:29
+3:17
12M
12.00 mi10:46:562:02:4110:1320:00
10:00
-0:29
Finish
13.11 mi10:57:492:13:3410:1110:53
9:49
-0:11

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

7:12 /mi

Average Pace

10:11 /mi

Slowest Pace

13:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

14:25

11% of race

Time at Steady Pace

1:32:49

69% of race

Time at Slower Pace

26:20

20% of race

Average Pace: 10:11 /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 mi09:05:1220:5710:2820:57
10:28
#2426
4M
4.00 mi09:25:1440:5910:1520:02
10:01
#2366
6M
6.00 mi09:51:341:07:1911:1326:20
13:10
#2432
8M
8.00 mi10:05:591:21:4410:1314:25
7:12
#2212
10M
10.00 mi10:26:561:42:4110:1620:57
10:29
#2143
12M
12.00 mi10:46:562:02:4110:1320:00
10:00
#1967
Finish
13.11 mi10:57:492:13:3410:1110:53
9:49
#1907
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
2M2.00 mi2.00 mi242615081441341(Top 35%)908(Top 44%)77(Top 39%)
4M4.00 mi2.00 mi2366+601470+38141+32343(Top 61%)1453(Top 70%)138(Top 69%)
6M6.00 mi2.00 mi2432-661508-38142-12552(Top 66%)1556(Top 75%)144(Top 72%)
8M8.00 mi2.00 mi2212+2201405+103135+71540(Top 40%)1042(Top 50%)85(Top 43%)
10M10.00 mi2.00 mi2143+691373+32130+51903(Top 50%)1237(Top 60%)110(Top 55%)
12M12.00 mi2.00 mi1967+1761275+98114+161341(Top 35%)908(Top 44%)77(Top 39%)
Finish13.11 mi1.11 mi1907+601245+30108+61465(Top 38%)963(Top 47%)82(Top 41%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 35%
×9story building
+138ft-68ft

Overall

1341

Males

908

M40-44

78

2M→4M

2.0 - 4.0 mi

Top 61%
×13story building
+163ft-19ft

Overall

2343

Males

1453

M40-44

139

4M→6M

4.0 - 6.0 mi

Top 66%
×4story building
+55ft-83ft

Overall

2552

Males

1556

M40-44

145

6M→8M

6.0 - 8.0 mi

Top 40%
×10story building
+65ft-151ft

Overall

1540

Males

1042

M40-44

85

8M→10M

8.0 - 10.0 mi

Top 50%
×10story building
+61ft-174ft

Overall

1903

Males

1237

M40-44

111

10M→12M

10.0 - 12.0 mi

Top 35%
×3story building
+41ft-53ft

Overall

1341

Males

908

M40-44

78

12M→Finish

12.0 - 13.1 mi

Top 38%
×1human
+6ft-6ft

Overall

1465

Males

963

M40-44

82

Passing Analysis

Category:
Athletes Passed
703*
Passed By
184
Net Change
+519
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2426
2M → 4M13070+60#2426#2366
4M → 6M2995-66#2366#2432
6M → 8M2211+220#2432#2212
8M → 10M80*11+69#2212#2143
10M → 12M1782+176#2143#1967
12M → Finish65*5+60#1967#1907
TOTALS703*184+519

* 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