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SF MARATHON 2ND HALF 2026

Byoung Jae Choi

Bib: 25316•M•Age: 41

San Francisco, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 3840
Top 49%
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
20:00
Rank: #2037
Start → 2M
20:00 | 10:00/mi
4M
37:56
Rank: #1793 (+244)
2M → 4M
17:56 | 8:58/mi
6M
1:01:49
Rank: #1793
4M → 6M
23:53 | 11:56/mi
8M
1:17:26
Rank: #1823 (-30)
6M → 8M
15:37 | 7:48/mi
10M
1:38:26
Rank: #1829 (-6)
8M → 10M
21:00 | 10:30/mi
12M
2:00:41
Rank: #1868 (-39)
10M → 12M
22:15 | 11:07/mi
Finish· 13.11 mi
2:13:23
Rank: #1900 (-32)
12M → Finish
12:42 | 11:27/mi

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:01:49
Pace10:18 /mi
2nd Half
Distance7.11 mi
Time1:11:34
Pace10:04 /mi
📊Positive Split: 15.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:11:3320:0010:0020:00
10:00
-
4M
4.00 mi09:29:2937:569:2917:56
8:58
-1:02
6M
6.00 mi09:53:221:01:4910:1823:53
11:56
+2:58
8M
8.00 mi10:08:591:17:269:4115:37
7:48
-4:08
10M
10.00 mi10:29:591:38:269:5121:00
10:30
+2:42
12M
12.00 mi10:52:142:00:4110:0322:15
11:07
+0:37
Finish
13.11 mi11:04:562:13:2310:1012:42
11:27
+0:20

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

7:48 /mi

Average Pace

10:10 /mi

Slowest Pace

11:56 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

33:33

25% of race

Time at Steady Pace

1:03:15

47% of race

Time at Slower Pace

36:35

27% of race

Average Pace: 10:10 /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 mi09:11:3320:0010:0020:00
10:00
#2037
4M
4.00 mi09:29:2937:569:2917:56
8:58
#1793
6M
6.00 mi09:53:221:01:4910:1823:53
11:56
#1793
8M
8.00 mi10:08:591:17:269:4115:37
7:48
#1823
10M
10.00 mi10:29:591:38:269:5121:00
10:30
#1829
12M
12.00 mi10:52:142:00:4110:0322:15
11:07
#1868
Finish
13.11 mi11:04:562:13:2310:1012:42
11:27
#1900
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
2M2.00 mi2.00 mi203713201211979(Top 52%)1249(Top 60%)111(Top 56%)
4M4.00 mi2.00 mi1793+2441194+126111+101619(Top 42%)1091(Top 53%)100(Top 50%)
6M6.00 mi2.00 mi17931192+2106+51821(Top 47%)1213(Top 59%)108(Top 54%)
8M8.00 mi2.00 mi1823-301206-14108-22087(Top 54%)1348(Top 65%)122(Top 61%)
10M10.00 mi2.00 mi1829-61208-2109-11914(Top 50%)1245(Top 60%)112(Top 56%)
12M12.00 mi2.00 mi1868-391223-15106+31979(Top 52%)1249(Top 60%)111(Top 56%)
Finish13.11 mi1.11 mi1900-321239-16107-12410(Top 63%)1439(Top 70%)132(Top 66%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 52%
×9stories
+138ft-68ft

Overall

1979

Males

1249

M40-44

112

2M→4M

2.0 - 4.0 mi

Top 42%
×13stories
+163ft-19ft

Overall

1619

Males

1091

M40-44

100

4M→6M

4.0 - 6.0 mi

Top 47%
×4stories
+55ft-83ft

Overall

1821

Males

1213

M40-44

109

6M→8M

6.0 - 8.0 mi

Top 54%
×10stories
+65ft-151ft

Overall

2087

Males

1348

M40-44

122

8M→10M

8.0 - 10.0 mi

Top 50%
×10stories
+61ft-174ft

Overall

1914

Males

1245

M40-44

113

10M→12M

10.0 - 12.0 mi

Top 52%
×3stories
+41ft-53ft

Overall

1979

Males

1249

M40-44

112

12M→Finish

12.0 - 13.1 mi

Top 63%
×1human
+6ft-6ft

Overall

2410

Males

1439

M40-44

132

Passing Analysis

Category:
Athletes Passed
402*
Passed By
265
Net Change
+137
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2037
2M → 4M2539+244#2037#1793
4M → 6M58580#1793#1793
6M → 8M2151-30#1793#1823
8M → 10M30*36-6#1823#1829
10M → 12M3069-39#1829#1868
12M → Finish10*42-32#1868#1900
TOTALS402*265+137

* 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