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SF MARATHON 2ND HALF 2026

Aaron Kempema

San Bruno, CA

Bib: 26378 M 42

0:00
0:00
/ mi
Masters
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Overall
#0 / 3840
Top 23%
Gender (Male)
#0 / 2065
Top 31%
Masters (Masters Men)
#0 / 555
Top 25%
Division (M40-44)
#0 / 200
Top 28%
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
8:35/mi
17:10
↑ 138↓ 680.7%
122 ft elev
4M
7:45/mi
32:40
↑ 1631.4%
280 ft elev
6M
10:36/mi
53:53
↑ 55↓ 830.3%
247 ft elev
8M
6:43/mi
1:07:19
↑ 65↓ 1510.8%
143 ft elev
10M
8:59/mi
1:25:17
↑ 61↓ 1741.1%
25 ft elev
12M
9:38/mi
1:44:33
↑ 41↓ 530.1%
12 ft elev
Finish· 13.11 mi
9:00/mi
1:54:32
→ flat
11 ft elev
Course Elevation
9–292 ft
≈
×24story building
•▲ 548 ft climb · ▼ 587 ft descent

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time53:53
Pace8:59 /mi
2nd Half
Distance7.11 mi
Time1:00:39
Pace8:32 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:06:2317:108:3517:10
8:35
-
4M
4.00 mi09:21:5332:408:1015:30
7:45
-0:50
6M
6.00 mi09:43:0653:538:5921:13
10:36
+2:51
8M
8.00 mi09:56:321:07:198:2513:26
6:43
-3:53
10M
10.00 mi10:14:301:25:178:3217:58
8:59
+2:16
12M
12.00 mi10:33:461:44:338:4319:16
9:38
+0:39
Finish
13.11 mi10:43:451:54:328:449:59
9:00
-0:38

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

6:43 /mi

Average Pace

8:44 /mi

Slowest Pace

10:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

28:56

25% of race

Time at Steady Pace

45:07

39% of race

Time at Slower Pace

40:29

35% of race

Average Pace: 8:44 /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 mi09:06:2317:108:3517:10
8:35
#852
4M
4.00 mi09:21:5332:408:1015:30
7:45
#732
6M
6.00 mi09:43:0653:538:5921:13
10:36
#800
8M
8.00 mi09:56:321:07:198:2513:26
6:43
#841
10M
10.00 mi10:14:301:25:178:3217:58
8:59
#849
12M
12.00 mi10:33:461:44:338:4319:16
9:38
#883
Finish
13.11 mi10:43:451:54:328:449:59
9:00
#883
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
2M2.00 mi2.00 mi852640591120(Top 29%)776(Top 38%)65(Top 33%)
4M4.00 mi2.00 mi732+120556+8449+10620(Top 16%)476(Top 23%)41(Top 21%)
6M6.00 mi2.00 mi800-68601-4551-2943(Top 25%)683(Top 33%)57(Top 28%)
8M8.00 mi2.00 mi841-41625-2453-21040(Top 27%)749(Top 36%)64(Top 32%)
10M10.00 mi2.00 mi849-8635-1053925(Top 24%)675(Top 33%)55(Top 28%)
12M12.00 mi2.00 mi883-34651-1656-31120(Top 29%)776(Top 38%)65(Top 33%)
Finish13.11 mi1.11 mi883647+455+1966(Top 25%)685(Top 33%)56(Top 28%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 29%
×9story building
+138ft-68ft

Overall

1120

Males

776

M40-44

65

2M→4M

2.0 - 4.0 mi

Top 16%
×13story building
+163ft-19ft

Overall

620

Males

476

M40-44

41

4M→6M

4.0 - 6.0 mi

Top 25%
×4story building
+55ft-83ft

Overall

943

Males

683

M40-44

58

6M→8M

6.0 - 8.0 mi

Top 27%
×10story building
+65ft-151ft

Overall

1040

Males

749

M40-44

64

8M→10M

8.0 - 10.0 mi

Top 24%
×10story building
+61ft-174ft

Overall

925

Males

675

M40-44

55

10M→12M

10.0 - 12.0 mi

Top 29%
×3story building
+41ft-53ft

Overall

1120

Males

776

M40-44

65

12M→Finish

12.0 - 13.1 mi

Top 25%
×1human
+6ft-6ft

Overall

966

Males

685

M40-44

56

Passing Analysis

Category:
Athletes Passed
194*
Passed By
225
Net Change
-31
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#852
2M → 4M1255+120#852#732
4M → 6M1078-68#732#800
6M → 8M1051-41#800#841
8M → 10M20*28-8#841#849
10M → 12M1246-34#849#883
12M → Finish17170#883#883
TOTALS194*225-31

* 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