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SF MARATHON 1ST HALF 2025

Narayanan Sundaram

Bib: 16366•M•Age: 41

Milpitas, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 7100
Gender (Male)
#0 / 3977
Masters (Masters Men)
#0 / 1096
Division (M40-44)
#0 / 336
Race Day Weather
56°/46°F
light rain

⏱️ Race Timeline

Start
0:00:00
Race begins
1.81M
18:06
Rank: #3895
Start → 1.81M
10:00/mi
18:06 split
5.34M
54:06
Rank: #3757 (+138)
1.81M → 5.34M
10:12/mi
36:00 split
6.15M
1:02:58
Rank: #3778 (-21)
5.34M → 6.15M
10:57/mi
8:52 split
10.54M
1:49:54
Rank: #3777 (+1)
6.15M → 10.54M
10:41/mi
46:56 split
11.05M
1:58:52
Rank: #3945 (-168)
10.54M → 11.05M
17:35/mi
8:58 split
Finish· 13.11 mi
2:21:41
Rank: #3917 (+28)
11.05M → Finish
11:05/mi
22:49 split

The Course

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Half Splits

1st Half· via 6.15MFaster
Distance6.15 mi
Time1:02:58
Pace10:14 /mi
2nd Half
Distance6.96 mi
Time1:18:43
Pace11:19 /mi
📊Positive Split: 25.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.81M
1.81 mi06:53:5818:0610:0018:06
10:00
-
5.34M
5.34 mi07:29:5854:0610:0836:00
10:12
+0:12
6.15M
6.15 mi07:38:501:02:5810:148:52
10:57
+0:45
10.54M
10.54 mi08:25:461:49:5410:2646:56
10:41
-0:16
11.05M
11.05 mi08:34:441:58:5210:458:58
17:35
+6:54
Finish
13.11 mi08:57:332:21:4110:4822:49
11:05
-6:30

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

10:00 /mi

Average Pace

10:48 /mi

Slowest Pace

17:35 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:12:43

94% of race

Time at Slower Pace

8:58

6% of race

Average Pace: 10:48 /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
1.81M
1.81 mi06:53:5818:0610:0018:06
10:00
#3895
5.34M
5.34 mi07:29:5854:0610:0836:00
10:12
#3757
6.15M
6.15 mi07:38:501:02:5810:148:52
10:57
#3778
10.54M
10.54 mi08:25:461:49:5410:2646:56
10:41
#3777
11.05M
11.05 mi08:34:441:58:5210:458:58
17:35
#3945
Finish
13.11 mi08:57:332:21:4110:4822:49
11:05
#3917
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
1.81M1.81 mi1.81 mi389525542213895(Top 55%)2554(Top 64%)221(Top 66%)
5.34M5.34 mi3.53 mi3757+1382489+65216+53738(Top 53%)2480(Top 62%)214(Top 64%)
6.15M6.15 mi0.81 mi3778-212496-7215+14060(Top 57%)2633(Top 66%)223(Top 66%)
10.54M10.54 mi4.39 mi3777+12483+132153853(Top 54%)2513(Top 63%)208(Top 62%)
11.05M11.05 mi0.51 mi3945-1682575-92220-55520(Top 78%)3285(Top 83%)280(Top 83%)
Finish13.11 mi2.06 mi3917+282543+322203938(Top 55%)2461(Top 62%)209(Top 62%)

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 55%
~flat
+4ft-3ft

Overall

3895

Males

2554

M40-44

221

1.81M→5.34M

1.8 - 5.3 mi

Top 53%
×4stories
+80ft-74ft

Overall

3738

Males

2480

M40-44

214

5.34M→6.15M

5.3 - 6.2 mi

Top 57%
×10stories
+126ft-4ft

Overall

4060

Males

2633

M40-44

223

6.15M→10.54M

6.2 - 10.5 mi

Top 54%
×21stories
+230ft-361ft

Overall

3853

Males

2513

M40-44

208

10.54M→11.05M

10.5 - 11.1 mi

Top 78%
×14stories
+172ft-0ft

Overall

5520

Males

3285

M40-44

280

11.05M→Finish

11.1 - 13.1 mi

Top 55%
×7stories
+97ft-114ft

Overall

3938

Males

2461

M40-44

209

Passing Analysis

Category:
Athletes Passed
625*
Passed By
647
Net Change
-22
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.81M----#3895
1.81M → 5.34M312*174+138#3895#3757
5.34M → 6.15M4667-21#3757#3778
6.15M → 10.54M174*173+1#3778#3777
10.54M → 11.05M5173-168#3777#3945
11.05M → Finish88*60+28#3945#3917
TOTALS625*647-22

* 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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The San Francisco Marathon

The San Francisco Marathon

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