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BOSTON MARATHON 2025

Christina Belezos

MA

Bib: 27515 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
10:26/mi
32:26
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
10:41/mi
1:05:39
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
10:53/mi
1:39:27
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
11:32/mi
2:15:16
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
10:05/mi
2:22:09
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
11:50/mi
2:50:51
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
11:56/mi
3:27:56
↑ 181↓ 1480.2%
138 ft elev
20M
12:08/mi
3:44:25
↑ 64↓ 500.2%
148 ft elev
21M
14:09/mi
3:58:34
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
11:44/mi
4:07:21
↑ 17↓ 861.7%
156 ft elev
23M
11:27/mi
4:21:41
↑ 23↓ 630.6%
116 ft elev
24M
11:20/mi
4:33:01
↓ 821.3%
34 ft elev
40K· 24.85 mi
11:49/mi
4:43:07
↓ 200.3%
20 ft elev
25.2M
13:03/mi
4:47:37
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
10:21/mi
4:58:10
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:22:09
Pace10:51 /mi
2nd Half
Distance13.11 mi
Time2:36:01
Pace11:54 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:2032:2610:2632:26
10:26
-
10K
6.21 mi12:21:331:05:3910:3433:13
10:41
+0:15
15K
9.32 mi12:55:211:39:2710:4033:48
10:53
+0:12
20K
12.43 mi13:31:102:15:1610:5335:49
11:32
+0:39
Half
13.11 mi13:38:032:22:0910:516:53
10:05
-1:27
25K
15.53 mi14:06:452:50:5111:0028:42
11:50
+1:45
30K
18.64 mi14:43:503:27:5611:0937:05
11:56
+0:06
20M
20.00 mi15:00:193:44:2511:1316:29
12:08
+0:12
21M
21.00 mi15:14:283:58:3411:2214:09
14:09
+2:01
35K
21.75 mi15:23:154:07:2111:228:47
11:44
-2:25
23M
23.00 mi15:37:354:21:4111:2314:20
11:27
-0:17
24M
24.00 mi15:48:554:33:0111:2311:20
11:20
-0:07
40K
24.85 mi15:59:014:43:0711:2310:06
11:49
+0:29
25.2M
25.20 mi16:03:314:47:3711:254:30
13:03
+1:14
Finish
26.22 mi16:14:044:58:1011:2310:33
10:21
-2:42

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

10:05 /mi

Average Pace

11:23 /mi

Slowest Pace

14:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:53

39% of race

Time at Steady Pace

2:26:09

49% of race

Time at Slower Pace

35:08

12% of race

Average Pace: 11:22 /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 mi11:48:2032:2610:2632:26
10:26
#26626
10K
6.21 mi12:21:331:05:3910:3433:13
10:41
#26607
15K
9.32 mi12:55:211:39:2710:4033:48
10:53
#26585
20K
12.43 mi13:31:102:15:1610:5335:49
11:32
#26609
Half
13.11 mi13:38:032:22:0910:516:53
10:05
#26529
25K
15.53 mi14:06:452:50:5111:0028:42
11:50
#26493
30K
18.64 mi14:43:503:27:5611:0937:05
11:56
#26313
20M
20.00 mi15:00:193:44:2511:1316:29
12:08
#26244
21M
21.00 mi15:14:283:58:3411:2214:09
14:09
#26284
35K
21.75 mi15:23:154:07:2111:228:47
11:44
#26268
23M
23.00 mi15:37:354:21:4111:2314:20
11:27
#26166
24M
24.00 mi15:48:554:33:0111:2311:20
11:20
#26108
40K
24.85 mi15:59:014:43:0711:2310:06
11:49
#26084
25.2M
25.20 mi16:03:314:47:3711:254:30
13:03
#26079
Finish
26.22 mi16:14:044:58:1011:2310:33
10:21
#26034
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26626111131111326516(Top 93%)11079(Top 91%)11079(Top 203%)
10K6.21 mi3.10 mi26607+1911109+411109+426581(Top 94%)11109(Top 91%)11109(Top 203%)
15K9.32 mi3.11 mi26585+2211106+311106+326516(Top 93%)11079(Top 91%)11079(Top 203%)
20K12.43 mi3.11 mi26609-2411128-2211128-2226654(Top 94%)11191(Top 92%)11191(Top 205%)
Half13.11 mi0.68 mi26529+8011084+4411084+4424988(Top 88%)10258(Top 84%)10258(Top 188%)
25K15.53 mi2.42 mi26493+3611075+911075+926248(Top 92%)10998(Top 90%)10998(Top 201%)
30K18.64 mi3.11 mi26313+18010991+8410991+8425496(Top 90%)10675(Top 87%)10675(Top 195%)
20M20.00 mi1.36 mi26244+6910973+1810973+1825437(Top 90%)10723(Top 88%)10723(Top 196%)
21M21.00 mi1.00 mi26284-4011010-3711010-3726369(Top 93%)11246(Top 92%)11246(Top 206%)
35K21.75 mi0.75 mi26268+1611006+411006+425453(Top 90%)10822(Top 89%)10822(Top 198%)
23M23.00 mi1.25 mi26166+10210958+4810958+4824150(Top 85%)10178(Top 83%)10178(Top 186%)
24M24.00 mi1.00 mi26108+5810935+2310935+2324617(Top 87%)10444(Top 85%)10444(Top 191%)
40K24.85 mi0.85 mi26084+2410926+910926+924640(Top 87%)10499(Top 86%)10499(Top 192%)
25.2M25.20 mi0.35 mi26079+510928-210928-225072(Top 88%)10727(Top 88%)10727(Top 196%)
Finish26.22 mi1.02 mi26034+4510909+1910909+1923898(Top 84%)10126(Top 83%)10126(Top 185%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21story building
+97ft-345ft

Overall

26516

Females

11079

F18-39

11079

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

26581

Females

11109

F18-39

11109

10K→15K

6.2 - 9.3 mi

Top 93%
×3story building
+67ft-78ft

Overall

26516

Females

11079

F18-39

11079

15K→20K

9.3 - 12.4 mi

Top 94%
×5story building
+106ft-86ft

Overall

26654

Females

11191

F18-39

11191

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

24988

Females

10258

F18-39

10258

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

26248

Females

10998

F18-39

10998

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

25496

Females

10675

F18-39

10675

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

25437

Females

10723

F18-39

10723

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

26369

Females

11246

F18-39

11246

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

25453

Females

10822

F18-39

10822

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

24150

Females

10178

F18-39

10178

23M→24M

23.0 - 24.0 mi

Top 87%
×6story building
+12ft-82ft

Overall

24617

Females

10444

F18-39

10444

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

24640

Females

10499

F18-39

10499

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

25072

Females

10727

F18-39

10727

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

23898

Females

10126

F18-39

10126

Passing Analysis

Category:
Athletes Passed
1226
Passed By
634
Net Change
+592
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26626
5K → 10K191172+19#26626#26607
10K → 15K127105+22#26607#26585
15K → 20K110134-24#26585#26609
20K → Half811+80#26609#26529
Half → 25K9660+36#26529#26493
25K → 30K20929+180#26493#26313
30K → 20M8617+69#26313#26244
20M → 21M3272-40#26244#26284
21M → 35K2610+16#26284#26268
35K → 23M1064+102#26268#26166
23M → 24M613+58#26166#26108
24M → 40K3612+24#26108#26084
40K → 25.2M138+5#26084#26079
25.2M → Finish527+45#26079#26034
TOTALS1226634+592
📊

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