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BOSTON MARATHON 2025

Callum Sparkes

Bib: 2662•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 5%
Gender (Male)
#0 / 16105
Top 9%
Division (M18-39)
#0 / 5642
Top 22%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:12
Rank: #1741
Start → 5K
6:11/mi
19:12 split
10K· 6.21 mi
38:05
Rank: #1555 (+186)
5K → 10K
6:05/mi
18:53 split
15K· 9.32 mi
56:50
Rank: #1389 (+166)
10K → 15K
6:02/mi
18:45 split
20K· 12.43 mi
1:16:18
Rank: #1494 (-105)
15K → 20K
6:16/mi
19:28 split
Half· 13.11 mi
1:20:34
Rank: #1516 (-22)
20K → Half
6:15/mi
4:16 split
25K· 15.53 mi
1:35:55
Rank: #1571 (-55)
Half → 25K
6:20/mi
15:21 split
30K· 18.64 mi
1:55:50
Rank: #1552 (+19)
25K → 30K
6:25/mi
19:55 split
20M
2:04:40
Rank: #1522 (+30)
30K → 20M
6:30/mi
8:50 split
21M
2:11:36
Rank: #1523 (-1)
20M → 21M
6:56/mi
6:56 split
35K· 21.75 mi
2:16:19
Rank: #1511 (+12)
21M → 35K
6:18/mi
4:43 split
23M
2:24:35
Rank: #1495 (+16)
35K → 23M
6:36/mi
8:16 split
24M
2:31:10
Rank: #1504 (-9)
23M → 24M
6:35/mi
6:35 split
40K· 24.85 mi
2:36:53
Rank: #1504
24M → 40K
6:41/mi
5:43 split
25.2M
2:39:25
Rank: #1509 (-5)
40K → 25.2M
7:21/mi
2:32 split
Finish· 26.22 mi
2:45:58
Rank: #1528 (-19)
25.2M → Finish
6:26/mi
6:33 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:34
Pace6:09 /mi
2nd Half
Distance13.11 mi
Time1:25:24
Pace6:31 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:4119:126:1119:12
6:11
-
10K
6.21 mi10:39:3438:056:0818:53
6:05
-0:06
15K
9.32 mi10:58:1956:506:0618:45
6:02
-0:03
20K
12.43 mi11:17:471:16:186:0819:28
6:16
+0:14
Half
13.11 mi11:22:031:20:346:094:16
6:15
-0:01
25K
15.53 mi11:37:241:35:556:1015:21
6:20
+0:05
30K
18.64 mi11:57:191:55:506:1319:55
6:25
+0:05
20M
20.00 mi12:06:092:04:406:148:50
6:30
+0:05
21M
21.00 mi12:13:052:11:366:166:56
6:56
+0:26
35K
21.75 mi12:17:482:16:196:164:43
6:18
-0:38
23M
23.00 mi12:26:042:24:356:178:16
6:36
+0:18
24M
24.00 mi12:32:392:31:106:186:35
6:35
-0:01
40K
24.85 mi12:38:222:36:536:195:43
6:41
+0:06
25.2M
25.20 mi12:40:542:39:256:202:32
7:21
+0:40
Finish
26.22 mi12:47:272:45:586:206:33
6:26
-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

6:02 /mi

Average Pace

6:20 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:06

37% of race

Time at Steady Pace

1:14:50

45% of race

Time at Slower Pace

30:02

18% of race

Average Pace: 6:20 /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 mi10:20:4119:126:1119:12
6:11
#1741
10K
6.21 mi10:39:3438:056:0818:53
6:05
#1555
15K
9.32 mi10:58:1956:506:0618:45
6:02
#1389
20K
12.43 mi11:17:471:16:186:0819:28
6:16
#1494
Half
13.11 mi11:22:031:20:346:094:16
6:15
#1516
25K
15.53 mi11:37:241:35:556:1015:21
6:20
#1571
30K
18.64 mi11:57:191:55:506:1319:55
6:25
#1552
20M
20.00 mi12:06:092:04:406:148:50
6:30
#1522
21M
21.00 mi12:13:052:11:366:166:56
6:56
#1523
35K
21.75 mi12:17:482:16:196:164:43
6:18
#1511
23M
23.00 mi12:26:042:24:356:178:16
6:36
#1495
24M
24.00 mi12:32:392:31:106:186:35
6:35
#1504
40K
24.85 mi12:38:222:36:536:195:43
6:41
#1504
25.2M
25.20 mi12:40:542:39:256:202:32
7:21
#1509
Finish
26.22 mi12:47:272:45:586:206:33
6:26
#1528
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1741165316531154(Top 4%)1092(Top 7%)1092(Top 19%)
10K6.21 mi3.10 mi1555+1861478+1751478+1751393(Top 5%)1322(Top 8%)1322(Top 23%)
15K9.32 mi3.11 mi1389+1661319+1591319+1591154(Top 4%)1092(Top 7%)1092(Top 19%)
20K12.43 mi3.11 mi1494-1051419-1001419-1001854(Top 7%)1765(Top 11%)1765(Top 31%)
Half13.11 mi0.68 mi1516-221440-211440-212200(Top 8%)2101(Top 13%)2101(Top 37%)
25K15.53 mi2.42 mi1571-551489-491489-492004(Top 7%)1908(Top 12%)1908(Top 34%)
30K18.64 mi3.11 mi1552+191471+181471+181596(Top 6%)1513(Top 9%)1513(Top 27%)
20M20.00 mi1.36 mi1522+301441+301441+301618(Top 6%)1529(Top 9%)1529(Top 27%)
21M21.00 mi1.00 mi1523-1144114411982(Top 7%)1865(Top 12%)1865(Top 33%)
35K21.75 mi0.75 mi1511+121429+121429+121614(Top 6%)1514(Top 9%)1514(Top 27%)
23M23.00 mi1.25 mi1495+161414+151414+151823(Top 6%)1704(Top 11%)1704(Top 30%)
24M24.00 mi1.00 mi1504-91423-91423-92389(Top 8%)2205(Top 14%)2205(Top 39%)
40K24.85 mi0.85 mi15041421+21421+22279(Top 8%)2084(Top 13%)2084(Top 37%)
25.2M25.20 mi0.35 mi1509-51425-41425-42661(Top 9%)2363(Top 15%)2363(Top 42%)
Finish26.22 mi1.02 mi1528-191445-201445-202424(Top 9%)2204(Top 14%)2204(Top 39%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21story building
+97ft-345ft

Overall

1154

Males

1092

M18-39

1092

5K→10K

3.1 - 6.2 mi

Top 5%
×5story building
+79ft-138ft

Overall

1393

Males

1322

M18-39

1322

10K→15K

6.2 - 9.3 mi

Top 4%
×3story building
+67ft-78ft

Overall

1154

Males

1092

M18-39

1092

15K→20K

9.3 - 12.4 mi

Top 7%
×5story building
+106ft-86ft

Overall

1854

Males

1765

M18-39

1765

20K→Half

12.4 - 13.1 mi

Top 8%
×2story building
+19ft-37ft

Overall

2200

Males

2101

M18-39

2101

Half→25K

13.1 - 15.5 mi

Top 7%
×4story building
+66ft-88ft

Overall

2004

Males

1908

M18-39

1908

25K→30K

15.5 - 18.6 mi

Top 6%
×9story building
+181ft-148ft

Overall

1596

Males

1513

M18-39

1513

30K→20M

18.6 - 20.0 mi

Top 6%
×5story building
+64ft-50ft

Overall

1618

Males

1529

M18-39

1529

20M→21M

20.0 - 21.0 mi

Top 7%
×8story building
+106ft-24ft

Overall

1982

Males

1865

M18-39

1865

21M→35K

21.0 - 21.8 mi

Top 6%
×7story building
+17ft-86ft

Overall

1614

Males

1514

M18-39

1514

35K→23M

21.8 - 23.0 mi

Top 6%
×5story building
+23ft-63ft

Overall

1823

Males

1704

M18-39

1704

23M→24M

23.0 - 24.0 mi

Top 8%
×6story building
+12ft-82ft

Overall

2389

Males

2205

M18-39

2205

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2279

Males

2084

M18-39

2084

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2661

Males

2363

M18-39

2363

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2story building
+22ft-21ft

Overall

2424

Males

2204

M18-39

2204

Passing Analysis

Category:
Athletes Passed
736
Passed By
523
Net Change
+213
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1741
5K → 10K20620+186#1741#1555
10K → 15K1693+166#1555#1389
15K → 20K28133-105#1389#1494
20K → Half123-22#1494#1516
Half → 25K2580-55#1516#1571
25K → 30K7556+19#1571#1552
30K → 20M5020+30#1552#1522
20M → 21M3031-1#1522#1523
21M → 35K3018+12#1523#1511
35K → 23M4731+16#1511#1495
23M → 24M2130-9#1495#1504
24M → 40K24240#1504#1504
40K → 25.2M1015-5#1504#1509
25.2M → Finish2039-19#1509#1528
TOTALS736523+213
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing