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BOSTON MARATHON 2025

Chris Guss

Bib: 21003•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:48
Rank: #18740
Start → 5K
25:48 | 8:18/mi
10K· 6.21 mi
51:27
Rank: #18485 (+255)
5K → 10K
25:39 | 8:15/mi
15K· 9.32 mi
1:20:35
Rank: #20453 (-1968)
10K → 15K
29:08 | 9:23/mi
20K· 12.43 mi
1:51:19
Rank: #21742 (-1289)
15K → 20K
30:44 | 9:54/mi
Half· 13.11 mi
1:57:42
Rank: #21818 (-76)
20K → Half
6:23 | 9:21/mi
25K· 15.53 mi
2:26:05
Rank: #23128 (-1310)
Half → 25K
28:23 | 11:42/mi
30K· 18.64 mi
3:02:54
Rank: #23702 (-574)
25K → 30K
36:49 | 11:51/mi
20M
3:19:35
Rank: #23953 (-251)
30K → 20M
16:41 | 12:17/mi
21M
3:32:35
Rank: #24060 (-107)
20M → 21M
13:00 | 13:00/mi
35K· 21.75 mi
3:41:07
Rank: #24090 (-30)
21M → 35K
8:32 | 11:24/mi
23M
3:56:26
Rank: #24195 (-105)
35K → 23M
15:19 | 12:14/mi
24M
4:08:24
Rank: #24282 (-87)
23M → 24M
11:58 | 11:58/mi
40K· 24.85 mi
4:18:38
Rank: #24332 (-50)
24M → 40K
10:14 | 11:58/mi
25.2M
4:22:55
Rank: #24327 (+5)
40K → 25.2M
4:17 | 12:25/mi
Finish· 26.22 mi
4:34:16
Rank: #24387 (-60)
25.2M → Finish
11:21 | 11:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:42
Pace8:59 /mi
2nd Half
Distance13.11 mi
Time2:36:34
Pace11:57 /mi
📊Positive Split: 33.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:5125:488:1825:48
8:18
-
10K
6.21 mi11:45:3051:278:1725:39
8:15
-0:03
15K
9.32 mi12:14:381:20:358:3929:08
9:23
+1:08
20K
12.43 mi12:45:221:51:198:5730:44
9:54
+0:31
Half
13.11 mi12:51:451:57:428:596:23
9:21
-0:33
25K
15.53 mi13:20:082:26:059:2428:23
11:42
+2:21
30K
18.64 mi13:56:573:02:549:4936:49
11:51
+0:09
20M
20.00 mi14:13:383:19:359:5916:41
12:17
+0:26
21M
21.00 mi14:26:383:32:3510:0713:00
13:00
+0:43
35K
21.75 mi14:35:103:41:0710:108:32
11:24
-1:36
23M
23.00 mi14:50:293:56:2610:1715:19
12:14
+0:50
24M
24.00 mi15:02:274:08:2410:2111:58
11:58
-0:16
40K
24.85 mi15:12:414:18:3810:2410:14
11:58
0:00
25.2M
25.20 mi15:16:584:22:5510:264:17
12:25
+0:27
Finish
26.22 mi15:28:194:34:1610:2811:21
11:08
-1:17

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

8:15 /mi

Average Pace

10:28 /mi

Slowest Pace

13:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:42

43% of race

Time at Steady Pace

2:23:34

52% of race

Time at Slower Pace

13:00

5% of race

Average Pace: 10:28 /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...
0mi6.6mi13.1mi19.7mi26.2mi
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
5K
3.11 mi11:19:5125:488:1825:48
8:18
#18740
10K
6.21 mi11:45:3051:278:1725:39
8:15
#18485
15K
9.32 mi12:14:381:20:358:3929:08
9:23
#20453
20K
12.43 mi12:45:221:51:198:5730:44
9:54
#21742
Half
13.11 mi12:51:451:57:428:596:23
9:21
#21818
25K
15.53 mi13:20:082:26:059:2428:23
11:42
#23128
30K
18.64 mi13:56:573:02:549:4936:49
11:51
#23702
20M
20.00 mi14:13:383:19:359:5916:41
12:17
#23953
21M
21.00 mi14:26:383:32:3510:0713:00
13:00
#24060
35K
21.75 mi14:35:103:41:0710:108:32
11:24
#24090
23M
23.00 mi14:50:293:56:2610:1715:19
12:14
#24195
24M
24.00 mi15:02:274:08:2410:2111:58
11:58
#24282
40K
24.85 mi15:12:414:18:3810:2410:14
11:58
#24332
25.2M
25.20 mi15:16:584:22:5510:264:17
12:25
#24327
Finish
26.22 mi15:28:194:34:1610:2811:21
11:08
#24387
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18740119271192723414(Top 82%)14028(Top 87%)14028(Top 1114%)
10K6.21 mi3.10 mi18485+25511828+9911828+9918263(Top 64%)11751(Top 73%)11751(Top 933%)
15K9.32 mi3.11 mi20453-196812669-84112669-84123414(Top 82%)14028(Top 87%)14028(Top 1114%)
20K12.43 mi3.11 mi21742-128913223-55413223-55423991(Top 84%)14228(Top 88%)14228(Top 1130%)
Half13.11 mi0.68 mi21818-7613256-3313256-3323135(Top 81%)13854(Top 86%)13854(Top 1100%)
25K15.53 mi2.42 mi23128-131013858-60213858-60226104(Top 92%)15121(Top 94%)15121(Top 1201%)
30K18.64 mi3.11 mi23702-57414066-20814066-20825387(Top 89%)14715(Top 91%)14715(Top 1169%)
20M20.00 mi1.36 mi23953-25114168-10214168-10225637(Top 90%)14752(Top 92%)14752(Top 1172%)
21M21.00 mi1.00 mi24060-10714199-3114199-3125037(Top 88%)14385(Top 89%)14385(Top 1143%)
35K21.75 mi0.75 mi24090-3014210-1114210-1124949(Top 88%)14328(Top 89%)14328(Top 1138%)
23M23.00 mi1.25 mi24195-10514230-2014230-2025449(Top 90%)14550(Top 90%)14550(Top 1156%)
24M24.00 mi1.00 mi24282-8714274-4414274-4425635(Top 90%)14615(Top 91%)14615(Top 1161%)
40K24.85 mi0.85 mi24332-5014282-814282-824880(Top 88%)14196(Top 88%)14196(Top 1128%)
25.2M25.20 mi0.35 mi24327+514271+1114271+1124040(Top 85%)13789(Top 86%)13789(Top 1095%)
Finish26.22 mi1.02 mi24387-6014283-1214283-1225611(Top 90%)14580(Top 91%)14580(Top 1158%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

23414

Males

14028

M60-64

14028

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

18263

Males

11751

M60-64

11751

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

23414

Males

14028

M60-64

14028

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

23991

Males

14228

M60-64

14228

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

23135

Males

13854

M60-64

13854

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

26104

Males

15121

M60-64

15121

25K→30K

15.5 - 18.6 mi

Top 89%
×9stories
+181ft-148ft

Overall

25387

Males

14715

M60-64

14715

30K→20M

18.6 - 20.0 mi

Top 90%
×5stories
+64ft-50ft

Overall

25637

Males

14752

M60-64

14752

20M→21M

20.0 - 21.0 mi

Top 88%
×8stories
+106ft-24ft

Overall

25037

Males

14385

M60-64

14385

21M→35K

21.0 - 21.8 mi

Top 88%
×7stories
+17ft-86ft

Overall

24949

Males

14328

M60-64

14328

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

25449

Males

14550

M60-64

14550

23M→24M

23.0 - 24.0 mi

Top 90%
×6stories
+12ft-82ft

Overall

25635

Males

14615

M60-64

14615

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

24880

Males

14196

M60-64

14196

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

24040

Males

13789

M60-64

13789

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2stories
+22ft-21ft

Overall

25611

Males

14580

M60-64

14580

Passing Analysis

Category:
Athletes Passed
723
Passed By
6370
Net Change
-5647
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18740
5K → 10K415160+255#18740#18485
10K → 15K131981-1968#18485#20453
15K → 20K241313-1289#20453#21742
20K → Half2096-76#21742#21818
Half → 25K51315-1310#21818#23128
25K → 30K38612-574#23128#23702
30K → 20M25276-251#23702#23953
20M → 21M29136-107#23953#24060
21M → 35K2454-30#24060#24090
35K → 23M41146-105#24090#24195
23M → 24M23110-87#24195#24282
24M → 40K2575-50#24282#24332
40K → 25.2M1712+5#24332#24327
25.2M → Finish2484-60#24327#24387
TOTALS7236370-5647
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing