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SF MARATHON 2ND HALF 2026

Michael Bolls

Bib: 23952•M•Age: 32

Chicago, IL

0:00
0:00
/ mi
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Overall
#0 / 3840
Gender (Male)
#0 / 2065
Division (M30-34)
#0 / 453
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
9:37/mi
19:14
↑ 138↓ 680.7%
4M
9:41/mi
38:36
↑ 1631.4%
6M
10:39/mi
59:54
↑ 55↓ 830.3%
8M
10:39/mi
1:21:12
↑ 65↓ 1510.8%
10M
11:37/mi
1:44:25
↑ 61↓ 1741.1%
12M
13:02/mi
2:10:30
↑ 41↓ 530.1%
Finish· 13.11 mi
12:07/mi
2:23:56
→ flat

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time59:54
Pace9:59 /mi
2nd Half
Distance7.11 mi
Time1:24:02
Pace11:49 /mi
📊Positive Split: 40.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi08:57:4919:149:3719:14
9:37
-
4M
4.00 mi09:17:1138:369:3919:22
9:41
+0:04
6M
6.00 mi09:38:2959:549:5921:18
10:39
+0:58
8M
8.00 mi09:59:471:21:1210:0921:18
10:39
0:00
10M
10.00 mi10:23:001:44:2510:2723:13
11:37
+0:58
12M
12.00 mi10:49:052:10:3010:5326:05
13:02
+1:25
Finish
13.11 mi11:02:312:23:5610:5913:26
12:07
-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

9:37 /mi

Average Pace

10:59 /mi

Slowest Pace

13:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

38:36

27% of race

Time at Steady Pace

42:36

30% of race

Time at Slower Pace

1:02:44

44% of race

Average Pace: 10:59 /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 mi08:57:4919:149:3719:14
9:37
#1701
4M
4.00 mi09:17:1138:369:3919:22
9:41
#1917
6M
6.00 mi09:38:2959:549:5921:18
10:39
#1563
8M
8.00 mi09:59:471:21:1210:0921:18
10:39
#2177
10M
10.00 mi10:23:001:44:2510:2723:13
11:37
#2273
12M
12.00 mi10:49:052:10:3010:5326:05
13:02
#2425
Finish
13.11 mi11:02:312:23:5610:5913:26
12:07
#2457
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi2.00 mi170111502582897(Top 75%)1672(Top 81%)374(Top 83%)
4M4.00 mi2.00 mi1917-2161255-105283-252137(Top 56%)1356(Top 66%)306(Top 68%)
6M6.00 mi2.00 mi1563+3541073+182241+42981(Top 26%)707(Top 34%)158(Top 35%)
8M8.00 mi2.00 mi2177-6141386-313317-763575(Top 93%)1956(Top 95%)437(Top 96%)
10M10.00 mi2.00 mi2273-961440-54328-112561(Top 67%)1540(Top 75%)348(Top 77%)
12M12.00 mi2.00 mi2425-1521499-59344-162897(Top 75%)1672(Top 81%)374(Top 83%)
Finish13.11 mi1.11 mi2457-321503-4341+32722(Top 71%)1579(Top 76%)359(Top 79%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 75%
×9story building
+138ft-68ft

Overall

2897

Males

1672

M30-34

375

2M→4M

2.0 - 4.0 mi

Top 56%
×13story building
+163ft-19ft

Overall

2137

Males

1356

M30-34

306

4M→6M

4.0 - 6.0 mi

Top 26%
×4story building
+55ft-83ft

Overall

981

Males

707

M30-34

158

6M→8M

6.0 - 8.0 mi

Top 93%
×10story building
+65ft-151ft

Overall

3575

Males

1956

M30-34

438

8M→10M

8.0 - 10.0 mi

Top 67%
×10story building
+61ft-174ft

Overall

2561

Males

1540

M30-34

349

10M→12M

10.0 - 12.0 mi

Top 75%
×3story building
+41ft-53ft

Overall

2897

Males

1672

M30-34

375

12M→Finish

12.0 - 13.1 mi

Top 71%
×1human
+6ft-6ft

Overall

2722

Males

1579

M30-34

359

Passing Analysis

Category:
Athletes Passed
434*
Passed By
1190
Net Change
-756
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1701
2M → 4M35251-216#1701#1917
4M → 6M3540+354#1917#1563
6M → 8M1615-614#1563#2177
8M → 10M17*113-96#2177#2273
10M → 12M11163-152#2273#2425
12M → Finish16*48-32#2425#2457
TOTALS434*1190-756

* 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